Publications

Pushing the Limits: Down‐Converting Er 3+ ‐Doped BaF 2 Single Crystals with Photoluminescence Quantum Yield Surpassing 100%
Madirov, E. I.; Kuznetsov, S. V.; Konyushkin, V. A.; Busko, D.; Richards, B. S.; Turshatov, A.
2024. Advanced Optical Materials, 12 (16), Artkl.Nr.: 2303094. doi:10.1002/adom.202303094

Sorting plastics waste for a circular economy: Perspectives for lanthanide luminescent markers
Howard, I. A.; Busko, D.; Gao, G.; Wendler, P.; Madirov, E.; Turshatov, A.; Moesslein, J.; Richards, B. S.
2024. Resources, Conservation and Recycling, 205, Art.-Nr.: 107557. doi:10.1016/j.resconrec.2024.107557

Enhanced photoluminescence of a microporous quantum dot color conversion layer by inkjet printing
Chen, J.; Jin, Q.; Donie, Y. J.; Perales, O. T.; Busko, D.; Richards, B. S.; Lemmer, U.
2024. Nano Research, 17, 7717–7725. doi:10.1007/s12274-024-6671-9

[001]-Oriented heteroepitaxy for fabricating emissive surface mounted metal–organic frameworks
Zhao, T.; Taghizade, N.; Fischer, J. C.; Richards, B. S.; Howard, I. A.
2024. Journal of Materials Chemistry C, 12 (15), 5496 – 5505. doi:10.1039/D4TC00018H

Tb and Eu in MOF‐76: Elucidating the Mechanisms Responsible for the Divergent Excellent and Poor Photoluminescence Quantum Yields
Meng, D.; Zhao, T.; Busko, D.; Cosgun Ergene, A.; Richards, B. S.; Howard, I. A.
2024. Advanced Optical Materials, 12 (9). doi:10.1002/adom.202300867

Extended Range of Ratiometric Luminescence Codes with Ce Modified GdOS:Er, Yb Shortwave Infrared Phosphors
Cosgun Ergene, A.; Madirov, E.; Coetsee-Hugo, E.; Swart, H.; Richards, B. S.; Turshatov, A.
2024. Advanced Optical Materials, Art.-Nr.: 2400925. doi:10.1002/adom.202400925

Determining Structures of Layer‐by‐Layer Spin‐Coated Zinc Dicarboxylate‐Based Metal‐Organic Thin Films
Fischer, J. C.; Steentjes, R.; Chen, D.-H.; Richards, B. S.; Zojer, E.; Wöll, C.; Howard, I. A.
2024. Chemistry – A European Journal, 30 (37), Art.-Nr.: e202400565. doi:10.1002/chem.202400565

Radiative cooling and indoor light management enabled by a transparent and self-cleaning polymer-based metamaterial
Huang, G.; Yengannagari, A. R.; Matsumori, K.; Patel, P.; Datla, A.; Trindade, K.; Amarsanaa, E.; Zhao, T.; Köhler, U.; Busko, D.; Richards, B. S.
2024. Nature Communications, 15 (1), Art.-Nr.: 3798. doi:10.1038/s41467-024-48150-2

High Quantum Yield Shortwave Infrared Luminescent Tracers for Improved Sorting of Plastic Waste
Rajagopalan, K.; Madirov, E.; Busko, D.; Howard, I. A.; Richards, B. S.; Swart, H. C.; Turshatov, A.
2023. ACS Applied Materials & Interfaces, 15 (37), 43985 – 43993. doi:10.1021/acsami.3c07387

Absolute quantum yield for understanding upconversion and downshift luminescence in PbF:Er,Yb crystals
Madirov, E.; Busko, D.; Howard, I. A.; Richards, B. S.; Turshatov, A.
2023. Physical Chemistry Chemical Physics, 25 (17), 11986–11997. doi:10.1039/D3CP00936J

Translucent perovskite photovoltaics for building integration
Ritzer, D. B.; Abdollahi Nejand, B.; Ruiz-Preciado, M. A.; Gharibzadeh, S.; Hu, H.; Diercks, A.; Feeney, T.; Richards, B. S.; Abzieher, T.; Paetzold, U. W.
2023. Energy & Environmental Science, 16 (5), 2212–2225. doi:10.1039/D2EE04137E

Preventing cation intermixing enables 50% quantum yield in sub-15 nm short-wave infrared-emitting rare-earth based core-shell nanocrystals
Arteaga Cardona, F.; Jain, N.; Popescu, R.; Busko, D.; Madirov, E.; Arús, B. A.; Gerthsen, D.; De Backer, A.; Bals, S.; Bruns, O. T.; Chmyrov, A.; Van Aert, S.; Richards, B. S.; Hudry, D.
2023. Nature Communications, 14, Art.-Nr.: 4462. doi:10.1038/s41467-023-40031-4

Luminescent solar concentrators for building integrated photovoltaics: opportunities and challenges
Richards, B. S.; Howard, I. A.
2023. Energy & Environmental Science, 16 (8), 3214–3239. doi:10.1039/d3ee00331k

GIWAXS Characterization of Metal–Organic Framework Thin Films and Heterostructures: Quantifying Structure and Orientation
Fischer, J. C.; Li, C.; Hamer, S.; Heinke, L.; Herges, R.; Richards, B. S.; Howard, I. A.
2023. Advanced Materials Interfaces, 10 (11), Art.-Nr.: 2202259. doi:10.1002/admi.202202259

Smartphone Authentication of Unclonable Anticounterfeiting Labels based on a Microlens Array atop a Microphosphor‐Doped Layer
Kumar, V.; Gota, F.; Neyret, J.; Katumo, N.; Chauhan, A.; Dottermusch, S.; Richards, B. S.; Howard, I. A.
2023. Advanced Materials Technologies, 8 (6), Art.-Nr.: 2201311. doi:10.1002/admt.202201311

Comparison of Quantum Yield of Upconversion Nanocrystals Determined by Absolute and Relative Methods
Madirov, E.; Busko, D.; Cardona, F. A.; Hudry, D.; Kuznetsov, S. V.; Konyushkin, V. A.; Nakladov, A. N.; Alexandrov, A. A.; Howard, I. A.; Richards, B. S.; Turshatov, A.
2023. Advanced Photonics Research, 4 (2), Art.-Nr.: 2200187. doi:10.1002/adpr.202200187

Expanding the Angle of Incidence Tolerance of Unclonable Anticounterfeiting Labels Based on Microlens Arrays and Luminescent Microparticles
Kumar, V.; Dottermusch, S.; Chauhan, A.; Richards, B. S.; Howard, I. A.
2022. Advanced Photonics Research, 3 (6), Art.-Nr.: 2100202. doi:10.1002/adpr.202100202

Frontiers in Photonics Spot Light
Anvari, B.; De Angelis, C.; Huang, S.; Litchinitser, N.; Poon, T.-C.; Scalari, G.; Richards, B. S.; Peccianti, M.
2022. Frontiers in Photonics, 3, Art.-Nr.: 853456. doi:10.3389/fphot.2022.853456

Correlative In Situ Multichannel Imaging for Large-Area Monitoring of Morphology Formation in Solution-Processed Perovskite Layers
Ternes, S.; Laufer, F.; Scharfer, P.; Schabel, W.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2022. Solar RRL, 6 (3), Art.-Nr. 2100353. doi:10.1002/solr.202100353

Limitation of room temperature phosphorescence efficiency in metal organic frameworks due to triplet-triplet annihilation
Zhao, T.; Busko, D.; Richards, B. S.; Howard, I. A.
2022. Frontiers in Chemistry, 10, Art.-Nr.: 1010857. doi:10.3389/fchem.2022.1010857

Scalable two-terminal all-perovskite tandem solar modules with a 19.1% efficiency
Abdollahi Nejand, B.; Ritzer, D. B.; Hu, H.; Schackmar, F.; Moghadamzadeh, S.; Feeney, T.; Singh, R.; Laufer, F.; Schmager, R.; Azmi, R.; Kaiser, M.; Abzieher, T.; Gharibzadeh, S.; Ahlswede, E.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2022. Nature Energy, 7, 620–630. doi:10.1038/s41560-022-01059-w

Charge Carrier and Exciton Dynamics in Perovskites Revealed by Time‐Integrated Photoluminescence after Double‐Pulse Excitation
Kaiser, M.; Li, Y.; Gharibzadeh, S.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.
2022. Advanced Materials Technologies, 7 (11), Art.Nr.: 2200152. doi:10.1002/admt.202200152

Unclonable Anti-Counterfeiting Labels Based on Microlens Arrays and Luminescent Microparticles
Kumar, V.; Dottermusch, S.; Katumo, N.; Chauhan, A.; Richards, B. S.; Howard, I. A.
2022. Advanced Optical Materials, 10 (9), Art.-Nr.: 2102402. doi:10.1002/adom.202102402

Dual-color dynamic anti-counterfeiting labels with persistent emission after visible excitation allowing smartphone authentication
Katumo, N.; Li, K.; Richards, B. S.; Howard, I. A.
2022. Scientific reports, 12 (1), Art.Nr.: 2100. doi:10.1038/s41598-022-05885-6

Cubic versus hexagonal - phase, size and morphology effects on the photoluminescence quantum yield of NaGdF :Er/Yb upconverting nanoparticles
Quintanilla, M.; Hemmer, E.; Marques-Hueso, J.; Rohani, S.; Lucchini, G.; Wang, M.; Zamani, R. R.; Roddatis, V.; Speghini, A.; Richards, B. S.; Vetrone, F.
2022. Nanoscale, 14 (4), 1492–1504. doi:10.1039/d1nr06319g

BODIPY–pyrene donor–acceptor sensitizers for triplet–triplet annihilation upconversion: the impact of the BODIPY-core on upconversion efficiency
Kiseleva, N.; Filatov, M. A.; Fischer, J. C.; Kaiser, M.; Jakoby, M.; Busko, D.; Howard, I. A.; Richards, B. S.; Turshatov, A.
2022. Physical chemistry, chemical physics, 24 (6), 3568–3578. doi:10.1039/d1cp05382e

Consensus statement: Standardized reporting of power-producing luminescent solar concentrator performance
Yang, C.; Atwater, H. A.; Baldo, M. A.; Baran, D.; Barile, C. J.; Barr, M. C.; Bates, M.; Bawendi, M. G.; Bergren, M. R.; Borhan, B.; Brabec, C. J.; Brovelli, S.; Bulović, V.; Ceroni, P.; Debije, M. G.; Delgado-Sanchez, J.-M.; Dong, W.-J.; Duxbury, P. M.; Evans, R. C.; Forrest, S. R.; Gamelin, D. R.; Giebink, N. C.; Gong, X.; Griffini, G.; Guo, F.; Herrera, C. K.; Ho-Baillie, A. W. Y.; Holmes, R. J.; Hong, S.-K.; Kirchartz, T.; Levine, B. G.; Li, H.; Li, Y.; Liu, D.; Loi, M. A.; Luscombe, C. K.; Makarov, N. S.; Mateen, F.; Mazzaro, R.; McDaniel, H.; McGehee, M. D.; Meinardi, F.; Menéndez-Velázquez, A.; Min, J.; Mitzi, D. B.; Moemeni, M.; Moon, J. H.; Nattestad, A.; Nazeeruddin, M. K.; Nogueira, A. F.; Paetzold, U. W.; Patrick, D. L.; Pucci, A.; Rand, B. P.; Reichmanis, E.; Richards, B. S.; Roncali, J.; Rosei, F.; Schmidt, T. W.; So, F.; Tu, C.-C.; Vahdani, A.; Sark, W. G. J. H. M.; Verduzco, R.; Vomiero, A.; Wong, W. W. H.; Wu, K.; Yip, H.-L.; Zhang, X.; Zhao, H.; Lunt, R. R.
2022. Joule, 6 (1), 8–15. doi:10.1016/j.joule.2021.12.004

Perovskite Solar Cells with Vivid, Angle‐Invariant and Customizable Inkjet‐printed Colorization for Building‐Integrated Photovoltaics
Eggers, H.; Gharibzadeh, S.; Koch, S.; Schackmar, F.; Ritzer, D.; Abzieher, T.; Richards, B. S.; Erban, C.; Paetzold, U. W.
2022. Solar RRL, 6 (4), Art.-Nr.: 2100897. doi:10.1002/solr.202100897

Single crystal monolithic up-converter solar cell device tandems with integrated optics
Arnaoutakis, G.; Favilla, E.; Tonelli, M.; Richards, B.
2022. Journal of the Optical Society of America / B, 39 (1), 239–247. doi:10.1364/JOSAB.437892

Experimental validation of a modeling framework for upconversion enhancement in 1D-photonic crystals
Hofmann, C. L. M.; Fischer, S.; Eriksen, E. H.; Bläsi, B.; Reitz, C.; Yazicioglu, D.; Howard, I. A.; Richards, B. S.; Goldschmidt, J. C.
2021. Nature Communications, 12 (1), Aricle no: 104. doi:10.1038/s41467-020-20305-x

Interface Pattern Engineering in Core-Shell Upconverting Nanocrystals: Shedding Light on Critical Parameters and Consequences for the Photoluminescence Properties
Hudry, D.; De Backer, A.; Popescu, R.; Busko, D.; Howard, I. A.; Bals, S.; Zhang, Y.; Pedrazo-Tardajos, A.; Van Aert, S.; Gerthsen, D.; Altantzis, T.; Richards, B. S.
2021. Small, 17 (47), Art.-Nr. 2104441. doi:10.1002/smll.202104441

In situ reflectance- photoluminescence imaging on solution-processed perovskite thin-films
Ternes, S.; Laufer, F.; Scharfer, P.; Schabel, W.; Richards, B. S.; Howard, I. A.; Paetzold, U.
2021. 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC), 1472–1475, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC43889.2021.9518569

Photodegradation of Triple-Cation Perovskite Solar Cells: The Role of Spectrum and Bias Conditions
Farooq, A.; Khan, M. R.; Abzieher, T.; Voigt, A.; Lupascu, D. C.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2021. ACS applied energy materials, 4 (4), 3083–3092. doi:10.1021/acsaem.0c02813

Phase evolution during annealing of low-temperature co-evaporated precursors for CZTSe solar cell absorbers
Mwakyusa, L. P.; Jin, X.; Müller, E.; Schneider, R.; Gerthsen, D.; Rinke, M.; Paetzold, U. W.; Richards, B. S.; Hetterich, M.
2021. Journal of applied physics, 129 (15), Article no: 153104. doi:10.1063/5.0041320

Rare-earth coordination polymers with multimodal luminescence on the nano-, micro-, and milli-second time scales
Jakoby, M.; Beil, C.; Nazari, P.; Richards, B. S.; Seitz, M.; Turshatov, A.; Howard, I. A.
2021. iScience, 24 (3), Art. Nr.: 102207. doi:10.1016/j.isci.2021.102207

Ratiometric Luminescent Thermometry with Excellent Sensitivity over a Broad Temperature Range Utilizing Thermally‐Assisted and Multiphoton Upconversion in Triply‐Doped La₂O₃:Yb³⁺/Er³⁺/Nd³⁺
Gao, G.; Busko, D.; Katumo, N.; Joseph, R.; Madirov, E.; Turshatov, A.; Howard, I. A.; Richards, B. S.
2021. Advanced optical materials, 9 (5), Art.-Nr.: 2001901. doi:10.1002/adom.202001901

Perovskite Solar Cells with All-Inkjet-Printed Absorber and Charge Transport Layers
Schackmar, F.; Eggers, H.; Frericks, M.; Richards, B. S.; Lemmer, U.; Hernandez-Sosa, G.; Paetzold, U. W.
2021. Advanced materials technologies, 6 (2), Art.Nr. 2000271. doi:10.1002/admt.202000271

Method for accurate experimental determination of singlet and triplet exciton diffusion between thermally activated delayed fluorescence molecules
Jakoby, M.; Heidrich, S.; Graf von Reventlow, L.; Degitz, C.; Suresh, S. M.; Zysman-Colman, E.; Wenzel, W.; Richards, B. S.; Howard, I. A.
2021. Chemical science, 12 (3), 1121–1125. doi:10.1039/d0sc05190j

Drying and Coating of Perovskite Thin Films: How to Control the Thin Film Morphology in Scalable Dynamic Coating Systems
Ternes, S.; Mohacsi, J.; Lüdtke, N.; Pham, H. M.; Arslan, M.; Scharfer, P.; Schabel, W.; Richards, B. S.; Paetzold, U. W.
2021. ACS Applied Materials and Interfaces, 14 (9), 11300–11312. doi:10.1021/acsami.1c22363

Optimization of SnO electron transport layer for efficient planar perovskite solar cells with very low hysteresis†
Eliwi, A. A.; Malekshahi Byranvand, M.; Fassl, P.; Khan, M. R.; Hossain, I. M.; Frericks, M.; Ternes, S.; Abzieher, T.; Schwenzer, J. A.; Mayer, T.; Hofmann, J. P.; Richards, B. S.; Lemmer, U.; Saliba, M.; Paetzold, U. W.
2021. Materials advances, 3 (1), 456–466. doi:10.1039/d1ma00585e

Interpreting the Time-Resolved Photoluminescence of Quasi-2D Perovskites
Kaiser, M.; Li, Y.; Allegro, I.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.
2021. Advanced Materials Interfaces, 8 (24), Art.-Nr.: 2101326. doi:10.1002/admi.202101326

Elucidating the role of metal-ion co-doping towards boosting upconversion luminescence in gadolinium vanadate
Chauhan, A.; Kataria, S.; Busko, D.; Cardona, F. A.; Turshatov, A.; Richards, B. S.
2021. Journal of materials chemistry / C, 9 (46), 16709–16720. doi:10.1039/D1TC03205D

Harvesting sub-bandgap photons via upconversion for perovskite solar cells
Singh, R.; Madirov, E.; Busko, D.; Hossain, I. M.; Konyushkin, V. A.; Nakladov, A. N.; Kuznetsov, S. V.; Farooq, A.; Gharibzadeh, S.; Paetzold, U. W.; Richards, B. S.; Turshatov, A.
2021. ACS applied materials & interfaces, 13 (46), 54874–54883. doi:10.1021/acsami.1c13477

Upscaling of perovskite solar modules: The synergy of fully evaporated layer fabrication and all‐laser‐scribed interconnections
Ritzer, D. B.; Abzieher, T.; Basibüyük, A.; Feeney, T.; Laufer, F.; Ternes, S.; Richards, B. S.; Bergfeld, S.; Paetzold, U. W.
2021. Progress in photovoltaics, 30 (4), 360–373. doi:10.1002/pip.3489

Coordination mechanism of cyanine dyes on the surface of core@active shell β-NaGdF:Yb,Er nanocrystals and its role in enhancing upconversion luminescence
Beygi Nasrabadi, H.; Madirov, E.; Popescu, R.; Štacková, L.; Štacko, P.; Klán, P.; Richards, B. S.; Hudry, D.; Turshatov, A.
2021. Journal of materials chemistry / C, 9 (45), 16313–16323. doi:10.1039/d1tc03333f

Photon Upconversion for Photovoltaics and Photocatalysis: A Critical Review – Focus Review
Richards, B. S.; Hudry, D.; Busko, D.; Turshatov, A.; Howard, I. A.
2021. Chemical reviews, 121 (15), 9165–9195. doi:10.1021/acs.chemrev.1c00034

Exciton versus free carrier emission: Implications for photoluminescence efficiency and amplified spontaneous emission thresholds in quasi-2D and 3D perovskites
Li, Y.; Allegro, I.; Kaiser, M.; Malla, A. J.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.; Howard, I. A.
2021. Materials Today, 49, 35–47. doi:10.1016/j.mattod.2021.05.002

Anticounterfeiting Labels with Smartphone‐Readable Dynamic Luminescent Patterns Based on Tailored Persistent Lifetimes in GdOS:Eu/Ti
Katumo, N.; Ruiz-Preciado, L. A.; Kumar, V.; Hernandez-Sosa, G.; Richards, B. S.; Howard, I. A.
2021. Advanced materials technologies, 6 (7), Art.-Nr.: 2100047. doi:10.1002/admt.202100047

Revealing the internal luminescence quantum efficiency of perovskite films via accurate quantification of photon recycling
Fassl, P.; Lami, V.; Berger, F. J.; Falk, L. M.; Zaumseil, J.; Richards, B. S.; Howard, I. A.; Vaynzof, Y.; Paetzold, U. W.
2021. Matter, 4 (4), 1391–1412. doi:10.1016/j.matt.2021.01.019

Interplay of structural dynamics and electronic effects in an engineered assembly of pentacene in a metal–organic framework
Haldar, R.; Kozlowska, M.; Ganschow, M.; Ghosh, S.; Jakoby, M.; Chen, H.; Ghalami, F.; Xie, W.; c; Tsutsui, Y.; Freudenberg, J.; Seki, S.; Howard, I. A.; Richards, B. S.; Bunz, U. H. F.; Elstner, M.; Wenzel, W.; Wöll, C.
2021. Chemical science, 12 (12), 4477–4483. doi:10.1039/d0sc07073d

How free exciton-exciton annihilation lets bound exciton emission dominate the photoluminescence of 2D-perovskites under high-fluence pulsed excitation at cryogenic temperatures
Kaiser, M.; Li, Y.; Schwenzer, J.; Jakoby, M.; Allegro, I.; Gerhard, M.; Koch, M.; Ducinskas, A.; Richards, B. S.; Graetzel, M.; Milić, J. V.; Paetzold, U. W.; Howard, I. A.
2021. Journal of Applied Physics, 129 (12), Art.-Nr.: 123101. doi:10.1063/5.0037800

An up-conversion luminophore with high quantum yield and brightness based on BaF:Yb,Er single crystals
Madirov, E. I.; Konyushkin, V. A.; Nakladov, A. N.; Fedorov, P. P.; Bergfeldt, T.; Busko, D.; Howard, I. A.; Richards, B. S.; Kuznetsov, S. V.; Turshatov, A.
2021. Journal of materials chemistry / C, 9 (10), 3493–3503. doi:10.1039/d1tc00104c

Bimolecular and Auger Recombination in Phase-Stable Perovskite Thin Films from Cryogenic to Room Temperature and Their Effect on the Amplified Spontaneous Emission Threshold
Allegro, I.; Li, Y.; Richards, B. S.; Paetzold, U. W.; Lemmer, U.; Howard, I. A.
2021. The journal of physical chemistry letters, 12 (9), 2293–2298. doi:10.1021/acs.jpclett.1c00099

Bright constant color upconversion based on dual 980 and 1550 nm excitation of SrF:Yb, Er and β-NaYF:Yb, Er micropowders― considerations for persistence of vision displays
Joseph, R. E.; Hudry, D.; Busko, D.; Biner, D.; Turshatov, A.; Krämer, K.; Richards, B. S.; Howard, I. A.
2021. Optical materials, 111, Art.Nr. 110598. doi:10.1016/j.optmat.2020.110598

Tuning Optical Properties by Controlled Aggregation: Electroluminescence Assisted by Thermally‐Activated Delayed Fluorescence from Thin Films of Crystalline Chromophores
Wöll, C.; Haldar, R.; Jakoby, M.; Kozlowska, M.; Khan, M. R.; Chen, H.; Pramudya, Y.; Richards, B. S.; Heinke, L.; Wenzel, W.; Odobel, F.; Diring, S.; Howard, I. A.; Lemmer, U.
2020. Chemistry - a European journal, 26 (71), 17016–17020. doi:10.1002/chem.202003712

A fully planar solar pumped laser based on a luminescent solar collector
Masuda, T.; Iyoda, M.; Yasumatsu, Y.; Dottermusch, S.; Howard, I. A.; Richards, B. S.; Bisson, J.-F.; Endo, M.
2020. Communications Physics, 3 (1), Article No. 60. doi:10.1038/s42005-020-0326-2

Crystalline assembly of perylene in metal–organic framework thin film: J-aggregate or excimer? Insight into the electronic structure
Kozlowska, M.; Pramudya, Y.; Jakoby, M.; Heidrich, S.; Pan, L.; Richards, B.; Howard, I.; Woell, C.; Haldar, R.; Wenzel, W.
2020. Journal of physics / Condensed matter, 33 (3), Art.Nr. 034001. doi:10.1088/1361-648X/abbc34

Phonon density of states in lanthanide-based nanocrystals
Li, Z. H.; Hudry, D.; Heid, R.; Said, A. H.; Le, M. D.; Popescu, R.; Gerthsen, D.; Merz, M.; Krämer, K. W.; Busko, D.; Howard, I. A.; Richards, B. S.; Weber, F.
2020. Physical review / B, 102 (16), Art.-Nr.: 165409. doi:10.1103/PhysRevB.102.165409

Impact of silver incorporation at the back contact of Kesterite solar cells on structural and device properties
Mwakyusa, L. P.; Leist, L.; Rinke, M.; Welle, A.; Paetzold, U. W.; Richards, B. S.; Hetterich, M.
2020. Thin solid films, 709, Art.-Nr. 138223. doi:10.1016/j.tsf.2020.138223

Inkjet-printed triple cation perovskite absorbers for mechanically flexible high performance X-ray detectors
Mescher, H.; Schackmar, F.; Eggers, H.; Abzieher, T.; Zuber, M.; Hamann, E.; Baumbach, T.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.; Lemmer, U.
2020. M. Fiederle, A. Burger & S. A. Payne (Eds.), Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXII : 24 August-4 September 2020, online only, United States / Arnold Burger, Stephen A. Payne, Michael Fiederle, 9, SPIE. doi:10.1117/12.2568063

Hot-embossed microcone-textured fluoropolymer as self-cleaning and anti-reflective photovoltaic module covers
Roslizar, A.; Dottermusch, S.; Schmager, R.; Guttmann, M.; Gomard, G.; Hölscher, H.; Richards, B. S.; Paetzold, U. W.
2020. Solar energy materials & solar cells, 214, 110582. doi:10.1016/j.solmat.2020.110582

Determination of Upconversion Quantum Yields Using Charge-Transfer State Fluorescence of Heavy-Atom-Free Sensitizer as a Self-Reference
Kiseleva, N.; Busko, D.; Richards, B. S.; Filatov, M. A.; Turshatov, A.
2020. The journal of physical chemistry letters, 11 (16), 6560–6566. doi:10.1021/acs.jpclett.0c01902

2D/3D Heterostructure for Semitransparent Perovskite Solar Cells with Engineered Bandgap Enables Efficiencies Exceeding 25% in Four‐Terminal Tandems with Silicon and CIGS
Gharibzadeh, S.; Hossain, I. M.; Fassl, P.; Nejand, B. A.; Abzieher, T.; Schultes, M.; Ahlswede, E.; Jackson, P.; Powalla, M.; Schäfer, S.; Rienäcker, M.; Wietler, T.; Peibst, R.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2020. Advanced functional materials, 30 (19), Art. Nr.: 1909919. doi:10.1002/adfm.201909919

Determination of complex optical constants and photovoltaic device design of all-inorganic CsPbBr₃ perovskite thin films
Yan, W.; Mao, L.; Zhao, P.; Mertens, A.; Dottermusch, S.; Hu, H.; Jin, Z.; Richards, B. S.
2020. Optics express, 28 (10), 15706–15717. doi:10.1364/OE.392246

Energy yield of bifacial textured perovskite/silicon tandem photovoltaic modules
Lehr, J.; Langenhorst, M.; Schmager, R.; Gota, F.; Kirner, S.; Lemmer, U.; Richards, B. S.; Case, C.; Paetzold, U. W.
2020. Solar energy materials & solar cells, 208, 110367. doi:10.1016/j.solmat.2019.110367

Separation and degradation detection of nanogram-per-litre concentrations of radiolabelled steroid hormones using combined liquid chromatography and flow scintillation analysis
Lyubimenko, R.; Richards, B. S.; Turshatov, A.; Schäfer, A. I.
2020. Scientific reports, 10 (1), Article: 7095. doi:10.1038/s41598-020-63697-y

Flexible Inkjet-Printed Triple Cation Perovskite X-ray Detectors
Mescher, H.; Schackmar, F.; Eggers, H.; Abzieher, T.; Zuber, M.; Hamann, E.; Baumbach, T.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.; Lemmer, U.
2020. ACS applied materials & interfaces, 12 (13), 15774–15784. doi:10.1021/acsami.9b14649

Nanostructured front electrodes for perovskite/c-Si tandem photovoltaics
Hossain, I. M.; Donie, Y. J.; Schmager, R.; Abdelkhalik, M. S.; Rienäcker, M.; Wietler, T. F.; Peibst, R.; Karabanov, A.; Schwenzer, J. A.; Moghadamzadeh, S.; Lemmer, U.; Richards, B. S.; Gomard, G.; Paetzold, U. W.
2020. Optics express, 28 (6), 8878–8897. doi:10.1364/OE.382253

Inkjet‐Printed Micrometer‐Thick Perovskite Solar Cells with Large Columnar Grains
Eggers, H.; Schackmar, F.; Abzieher, T.; Sun, Q.; Lemmer, U.; Vaynzof, Y.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.
2020. Advanced energy materials, 10 (6), Art. Nr.: 1903184. doi:10.1002/aenm.201903184

Spontaneous Enhancement of the Power Output in Surface-Passivated Triple-Cation Perovskite Solar Cells
Moghadamzadeh, S.; Gharibzadeh, S.; Jakoby, M.; Khan, M. R.; Haghighirad, A. A.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. 2020 47th IEEE Photovoltaic Specialists Conference (PVSC), 15 June - 21 August 2020, online, 1217–1219, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC45281.2020.9300632

Solar powered fiber laser for energy conversion applications
Masuda, T.; Dottermusch, S.; Howard, I. A.; Richards, B. S.; Bisson, J.; Endo, M.
2020. CLEO: Applications and Technology : part of CLEO: 2020 : 10-15 May 2020, Washington, DC, United States, Art.Nr. AF3N.4, Optica Publishing Group (OSA). doi:10.1364/CLEO_AT.2020.AF3N.4

Progress on Perovskite Solar Cells with All-Inkjet-Printed Absorber and Extraction Layers
Eggers, H.; Schackmar, F.; Abzieher, T.; Sun, Q.; Vaynzof, Y.; Lemmer, U.; Richards, B. S.; Hernandez-Sosa, G.; Paetzold, U. W.
2020. Optical Devices and Materials for Solar Energy and Solid-state Lighting 2020, Washington, DC United States, 13–16 July 2020, Optica Publishing Group (OSA)

Chemical vapor deposited polymer layer for efficient passivation of planar perovskite solar cells
Malekshahi Byranvand, M.; Behboodi-Sadabad, F.; Alrhman Eliwi, A.; Trouillet, V.; Welle, A.; Ternes, S.; Hossain, I. M.; Khan, M. R.; Schwenzer, J. A.; Farooq, A.; Richards, B. S.; Lahann, J.; Paetzold, U. W.
2020. Journal of materials chemistry / A, 8 (38), 20122–20132. doi:10.1039/d0ta06646j

Correction: Guest-responsive polaritons in a porous framework: chromophoric sponges in optical QED cavities
Haldar, R.; Fu, Z.; Joseph, R.; Herrero, D.; Martín-Gomis, L.; Richards, B. S.; Howard, I. A.; Sastre-Santos, Á.; Wöll, C.
2020. Chemical science, 11 (32), 8626. doi:10.1039/d0sc90163f

Enhancing Singlet Oxygen Generation in Conjugates of Silicon Nanocrystals and Organic Photosensitizers
Beri, D.; Jakoby, M.; Busko, D.; Richards, B. S.; Turshatov, A.
2020. Frontiers in Chemistry, 8, Article no: 567. doi:10.3389/fchem.2020.00567

Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from GdOS:Eu
Katumo, N.; Gao, G.; Laufer, F.; Richards, B. S.; Howard, I. A.
2020. Advanced optical materials, 8 (19), Art.Nr. 2000507. doi:10.1002/adom.202000507

Toward Stable Perovskite Solar Cell Architectures: Robustness against Temperature Variations of Real-World Conditions
Schwenzer, J. A.; Rakocevic, L.; Abzieher, T.; Rueda-Delgado, D.; Moghadamzadeh, S.; Gharibzadeh, S.; Hossain, I. M.; Gehlhaar, R.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. IEEE journal of photovoltaics, 10 (3), 777–784. doi:10.1109/JPHOTOV.2020.2969785

Experimental Determination of Complex Optical Constants of Air-Stable Inorganic CsPbI₃ Perovskite Thin Films
Yan, W.; Guo, Y.; Beri, D.; Dottermusch, S.; Chen, H.; Richards, B. S.
2020. Physica status solidi / Rapid research letters, 14 (6), Art.-Nr.: 2000070. doi:10.1002/pssr.202000070

Sensitizing TADF Absorption Using Variable Length Oligo(phenylene ethynylene) Antennae
Franco, O.; Jakoby, M.; Schneider, R. V.; Hundemer, F.; Hahn, D.; Richards, B. S.; Bräse, S.; Meier, M. A. R.; Lemmer, U.; Howard, I. A.
2020. Frontiers in Chemistry, 8, Art.-Nr.: 126. doi:10.3389/fchem.2020.00126

Lanthanide Sensitizers for Large Anti-Stokes Shift Near-Infrared-to-Visible Triplet–Triplet Annihilation Photon Upconversion
Kiseleva, N.; Nazari, P.; Dee, C.; Busko, D.; Richards, B. S.; Seitz, M.; Howard, I. A.; Turshatov, A.
2020. The journal of physical chemistry letters, 11, 2477–2481. doi:10.1021/acs.jpclett.0c00221

Upconversion properties of SrF₂:Yb³⁺,Er³⁺ single crystals
Saleta Reig, D.; Grauel, B.; Konyushkin, V. A.; Fedorov, P. P.; Busko, D.; Howard, I. A.; Richards, B. S.; Resch-Genger, U.; Kuznetsov, S.; Turshatov, A.; Würth, C.
2020. Journal of materials chemistry / C, 8 (12), 4093–4101. doi:10.1039/C9TC06591A

Improved photon absorption in dye-functionalized silicon nanocrystals synthesized via microwave-assisted hydrosilylation
Beri, D.; Jakoby, M.; Howard, I. A.; Busko, D.; Richards, B. S.; Turshatov, A.
2020. Dalton transactions, 49 (7), 2290–2299. doi:10.1039/C9DT04497C

High Efficiency Perovskite‐Silicon Tandem Solar Cells: Effect of Surface Coating versus Bulk Incorporation of 2D Perovskite
Duong, T.; Pham, H.; Kho, T. C.; Phang, P.; Fong, K. C.; Yan, D.; Yin, Y.; Peng, J.; Mahmud, M. A.; Gharibzadeh, S.; Nejand, B. A.; Hossain, I. M.; Khan, M. R.; Mozaffari, N.; Wu, Y.; Shen, H.; Zheng, J.; Mai, H.; Liang, W.; Samundsett, C.; Stocks, M.; McIntosh, K.; Andersson, G. G.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.; Ho-Ballie, A.; Liu, Y.; Macdonald, D.; Blakers, A.; Wong-Leung, J.; White, T.; Weber, K.; Catchpole, K.
2020. Advanced energy materials, 10 (9), Art. Nr.: 1903553. doi:10.1002/aenm.201903553

High-brightness Perovskite Light-emitting Diodes Using a Printable Silver Microflake Contact
Payandeh, M.; Ahmadi, V.; Arabpour Roghabadi, F.; Nazari, P.; Ansari, F.; Brenner, P.; Baeuerle, R.; jakoby, marius; Lemmer, U.; Howard, I. A.; Richards, B. S.; Paetzold, U. W.; Abdollahi Nejand, B.
2020. ACS applied materials & interfaces, 12 (10), 11428–11437. doi:10.1021/acsami.9b18527

Laminated Perovskite Photovoltaics: Enabling Novel Layer Combinations and Device Architectures
Schmager, R.; Roger, J.; Schwenzer, J. A.; Schackmar, F.; Abzieher, T.; Malekshahi Byranvand, M.; Abdollahi Nejand, B.; Worgull, M.; Richards, B. S.; Paetzold, U. W.
2020. Advanced functional materials, 30 (9), Art. Nr.: 1907481. doi:10.1002/adfm.201907481

Solution-processed and evaporated C interlayers for improved charge transport in perovskite photovoltaics
Rueda-Delgado, D.; Hossain, I. M.; Jakoby, M.; Schwenzer, J. A.; Abzieher, T.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2020. Organic electronics, 77, Article: 105526. doi:10.1016/j.orgel.2019.105526

Vacuum‐Assisted Growth of Low‐Bandgap Thin Films (FAMASnPbI) for All‐Perovskite Tandem Solar Cells
Abdollahi Nejand, B.; Hossain, I. M.; Jakoby, M.; Moghadamzadeh, S.; Abzieher, T.; Gharibzadeh, S.; Schwenzer, J. A.; Nazari, P.; Schackmar, F.; Hauschild, D.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2020. Advanced energy materials, 10 (5), Article: 1902583. doi:10.1002/aenm.201902583

A de novo strategy for predictive crystal engineering to tune excitonic coupling
Haldar, R.; Mazel, A.; Krstić, M.; Zhang, Q.; Jakoby, M.; Howard, I. A.; Richards, B. S.; Jung, N.; Jacquemin, D.; Diring, S.; Wenzel, W.; Odobel, F.; Wöll, C.
2019. Nature Communications, 10 (1), Art.Nr. 2048. doi:10.1038/s41467-019-10011-8

CZTSe solar cells prepared by co-evaporation of multilayer Cu–Sn/Cu,Zn,Sn,Se/ZnSe/Cu,Zn,Sn,Se stacks
Mwakyusa, L. P.; Neuwirth, M.; Kogler, W.; Schnabel, T.; Ahlswede, E.; Paetzold, U. W.; Richards, B. S.; Hetterich, M.
2019. Physica scripta, 94 (10), Artk.Nr.: 105007. doi:10.1088/1402-4896/ab2b16

Enhanced color conversion of quantum dots - polymer hybrid films in light emitting diodes
Yu, S.; Fritz, B.; Theobald, D.; Wu, K.; Johnsen, S.; Busko, D.; Richards, B. S.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Holscher, H.; Gomard, G.
2019. 20th International Conference on Electronic Packaging Technology (ICEPT 2019), 1–4, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/ICEPT47577.2019.245231

Micro-cone textures for improved light in-coupling and retroreflection-inspired light trapping at the front surface of solar modules
Dottermusch, S.; Schmager, R.; Klampaftis, E.; Paetel, S.; Kiowski, O.; Ding, K.; Richards, B. S.; Paetzold, U. W.
2019. Progress in photovoltaics, 27 (7), 593–602. doi:10.1002/pip.3133

Coated and Printed Perovskites for Photovoltaic Applications
Howard, I. A.; Abzieher, T.; Hossain, I. M.; Eggers, H.; Schackmar, F.; Ternes, S.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2019. Advanced materials, 31 (26), Art.Nr. 1806702. doi:10.1002/adma.201806702

Structure–Property Relationships in Lanthanide‐Doped Upconverting Nanocrystals: Recent Advances in Understanding Core–Shell Structures
Hudry, D.; Howard, I. A.; Popescu, R.; Gerthsen, D.; Richards, B. S.
2019. Advanced materials, 31 (26), Art.Nr. 1900623. doi:10.1002/adma.201900623

Enhanced Photoluminescence in Quantum Dots–Porous Polymer Hybrid Films Fabricated by Microcellular Foaming
Yu, S.; Fritz, B.; Johnsen, S.; Busko, D.; Richards, B. S.; Hippler, M.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Hölscher, H.; Gomard, G.
2019. Advanced optical materials, 7 (12), Article no: 1900223. doi:10.1002/adom.201900223

Perovskite Solar Cells: Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure
Gharibzadeh, S.; Abdollahi Nejand, B.; Jakoby, M.; Abzieher, T.; Hauschild, D.; Moghadamzadeh, S.; Schwenzer, J. A.; Brenner, P.; Schmager, R.; Haghighirad, A. A.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2019. Advanced energy materials, 9 (21), 1970079. doi:10.1002/aenm.201970079

Methodology of energy yield modelling of perovskite-based multi-junction photovoltaics
Schmager, R.; Langenhorst, M.; Lehr, J.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2019. Optics express, 27 (8), A507-A523. doi:10.1364/OE.27.00A507

Nanophotonic perovskite layers for enhanced current generation and mitigation of lead in perovskite solar cells
Schmager, R.; Gomard, G.; Richards, B. S.; Paetzold, U. W.
2019. Solar energy materials & solar cells, 192, 65–71. doi:10.1016/j.solmat.2018.12.012

Continuous wave amplified spontaneous emission in phase-stable lead halide perovskites
Brenner, P.; Bar-On, O.; Jakoby, M.; Allegro, I.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. Nature Communications, 10 (1), Article-Nr.: 988. doi:10.1038/s41467-019-08929-0

Superhydrophobic self-cleaning cover sheets for photovoltaic modules
Roslizar, A.; Dottermusch, S.; Hölscher, H.; Paetzold, U. W.; Richards, B. S.
2019. Optical Devices and Materials for Solar Energy and Solid-state Lighting. In: Proceedings OSA Advanced Photonics Congress (AP) 2019 (IPR, Networks, NOMA, SPPCom, PVLED) ; 29 July–2 August 2019, Burlingame, California, United States, Art.-Nr.: PW3C.3, Optica Publishing Group (OSA). doi:10.1364/PVLED.2019.PW3C.3

Foamed polymer/quantum dots composite films with enhanced photoluminescence efficiency
Yu, S.; Fritz, B.; Theobald, D.; Johnsen, S.; Busko, D.; Richards, B. S.; Hippler, M.; Wiegand, G.; Tang, Y.; Li, Z.; Lemmer, U.; Hölscher, H.; Gomard, G.
2019. Optical Devices and Materials for Solar Energy and Solid-State Lighting : part of OSA Advanced Photonics Congress, Burlingame, CA, July 29 - August 2, 2019. Part F136-PVLED 2019, Optica Publishing Group (OSA). doi:10.1364/PVLED.2019.PT2C.4

Continuous wave amplified spontaneous emission in phase-stable triple cation lead halide perovskite thin films
Allegro, I.; Brenner, P.; Bar-On, O.; Jakoby, M.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC): Munich, International Congress Centre (ICM), Germany, 23-27 June 2019, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/CLEOE-EQEC.2019.8871688

Spontaneous Enhancement of the Stable Power Conversion Efficiency in Perovskite Solar Cells
Moghadamzadeh, S.; Hossain, I.; Jakoby, M.; Abdollahi Nejand, B.; Rueda-Delgado, D.; Schwenzer, J. A.; Gharibzadeh, S.; Abzieher, T.; Khan, M. R.; Haghighirad, A. A.; Howard, I. A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2019. Journal of materials chemistry / A, 8 (2), 670–682. doi:10.1039/C9TA09584E

Facile synthesis of mono-disperse sub-20 nm NaY(WO4)2:Er3+,Yb3+ upconversion nanoparticles: A new choice for nanothermometry
Lin, M.; Xie, L.; Wang, Z.; Richards, B. S.; Gao, G.; Zhong, J.
2019. Journal of materials chemistry / C, 7 (10), 2971–2977. doi:10.1039/c8tc05669b

Perovskite/Hole Transport Layer Interface Improvement by Solvent Engineering of Spiro-OMeTAD Precursor Solution
Taherianfard, H.; Kim, G.-W.; Ebadi, F.; Abzieher, T.; Choi, K.; Paetzold, U. W.; Richards, B. S.; Alrhman Eliwi, A.; Tajabadi, F.; Taghavinia, N.; Malekshahi Byranvand, M.
2019. ACS applied materials & interfaces, acsami.9b10828. doi:10.1021/acsami.9b10828

Investigations of singlet and triplet diffusion in thermally activated delayed-fluorescence emitters: Implications for hyperfluorescence
Jakoby, M.; Richards, B. S.; Lemmer, U.; Howard, I. A.
2019. Physical review / B, 100 (4), Art. Nr.: 045303. doi:10.1103/PhysRevB.100.045303

Critical Power Density: A Metric to Compare the Excitation Power Density Dependence of Photon Upconversion in Different Inorganic Host Materials
Joseph, R. E.; Jiménez, C.; Hudry, D.; Gao, G.; Busko, D.; Biner, D.; Turshatov, A.; Krämer, K.; Richards, B. S.; Howard, I. A.
2019. The journal of physical chemistry <Washington, DC> / A, 123 (31), 6799–6811. doi:10.1021/acs.jpca.9b03851

Liquid glass for photovoltaics: multi-functional front cover glass for solar modules
Langenhorst, M.; Ritzer, D.; Kotz, F.; Risch, P.; Dottermusch, S.; Roslizar, A.; Schmager, R.; Richards, B. S.; Rapp, B. E.; Paetzold, U. W.
2019. ACS applied materials & interfaces, acsami.9b12896. doi:10.1021/acsami.9b12896

Drying Dynamics of Solution‐Processed Perovskite Thin‐Film Photovoltaics: In Situ Characterization, Modeling, and Process Control
Ternes, S.; Börnhorst, T.; Schwenzer, J. A.; Hossain, I. M.; Abzieher, T.; Mehlmann, W.; Lemmer, U.; Scharfer, P.; Schabel, W.; Richards, B. S.; Paetzold, U. W.
2019. Advanced energy materials, 9 (39), Article no: 1901581. doi:10.1002/aenm.201901581

Efficient Photocatalytic Removal of Methylene Blue Using a Metalloporphyrin-Poly(vinylidene fluoride) Hybrid Membrane in a Flow-Through Reactor
Lyubimenko, R.; Busko, D.; Richards, B. S.; Schaefer, A. I.; Turshatov, A.
2019. ACS applied materials & interfaces, 11 (35), 31763–31776. doi:10.1021/acsami.9b04601

Light coupling to quasi-guided modes in nanoimprinted perovskite solar cells
Schmager, R.; Hossain, I. M.; Schackmar, F. R.; Richards, B. S.; Gomard, G.; Paetzold, U. W.
2019. Solar energy materials & solar cells, 201, Art.-Nr.: 110080. doi:10.1016/j.solmat.2019.110080

Efficient All-Evaporated pin-Perovskite Solar Cells: A Promising Approach Toward Industrial Large-Scale Fabrication
Abzieher, T.; Schwenzer, J. A.; Moghadamzadeh, S.; Sutterluti, F.; Hossain, I. M.; Pfau, M.; Lotter, E.; Hetterich, M.; Richards, B. S.; Lemmer, U.; Powalla, M.; Paetzold, U. W.
2019. IEEE journal of photovoltaics, 9 (5), 1249–1257. doi:10.1109/JPHOTOV.2019.2920727

Continuous Wave Amplified Spontaneous Emission from Mixed Cation Perovskite devices
Brenner, P.; Bar-On, O.; Jakoby, M.; Allegro, I.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Scheuer, J.; Lemmer, U.
2019. Conference on Lasers and Electro-Optics, JTu2A.71, Optica Publishing Group (OSA). doi:10.1364/CLEO_AT.2019.JTu2A.71

An enhanced energy migration strategy in upconverting nanocrystals: Color-tuning with high quantum yield
Hudry, D.; Busko, D.; Popescu, R.; Gerthsen, D.; Howard, I. A.; Richards, B. S.
2019. Journal of materials chemistry / C, 7 (24), 7371–7377. doi:10.1039/c9tc01567a

Light Management: A Key Concept in High-Efficiency Perovskite/Silicon Tandem Photovoltaics
Jacobs, D. A.; Langenhorst, M.; Sahli, F.; Richards, B. S.; White, T. P.; Ballif, C.; Catchpole, K. R.; Paetzold, U. W.
2019. The journal of physical chemistry letters, 10 (11), 3159–3170. doi:10.1021/acs.jpclett.8b03721

Highly Efficient One-Dimensional Triplet Exciton Transport in a Palladium-Porphyrin-Based Surface-Anchored Metal-Organic Framework
Adams, M.; Kozlowska, M.; Baroni, N.; Oldenburg, M.; Ma, R.; Busko, D.; Turshatov, A.; Emandi, G.; Senge, M. O.; Haldar, R.; Wöll, C.; Nienhaus, G. U.; Richards, B. S.; Howard, I. A.
2019. ACS applied materials & interfaces, 11 (17), 15688–15697. doi:10.1021/acsami.9b03079

Record Open‐Circuit Voltage Wide‐Bandgap Perovskite Solar Cells Utilizing 2D/3D Perovskite Heterostructure
Gharibzadeh, S.; Abdollahi Nejand, B.; Jakoby, M.; Abzieher, T.; Hauschild, D.; Moghadamzadeh, S.; Schwenzer, J. A.; Brenner, P.; Schmager, R.; Haghighirad, A. A.; Weinhardt, L.; Lemmer, U.; Richards, B. S.; Howard, I. A.; Paetzold, U. W.
2019. Advanced energy materials, 9 (21), Article: 1803699. doi:10.1002/aenm.201803699

Electron-Beam-Evaporated Nickel Oxide Hole Transport Layers for Perovskite-Based Photovoltaics
Abzieher, T.; Moghadamzadeh, S.; Schackmar, F.; Eggers, H.; Sutterlüti, F.; Farooq, A.; Kojda, D.; Habicht, K.; Schmager, R.; Mertens, A.; Azmi, R.; Klohr, L.; Schwenzer, J. A.; Hetterich, M.; Lemmer, U.; Richards, B. S.; Powalla, M.; Paetzold, U. W.
2019. Advanced energy materials, 9 (12), Article no 1802995. doi:10.1002/aenm.201802995

Scalable Processing of Low-Temperature TiO₂ Nanoparticles for High-Efficiency Perovskite Solar Cells
Hossain, I. M.; Hudry, D.; Mathies, F.; Abzieher, T.; Moghadamzadeh, S.; Rueda-Delgado, D.; Schackmar, F.; Bruns, M.; Andriessen, R.; Aernouts, T.; Di Giacomo, F.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.; Hadipour, A.
2019. ACS applied energy materials, 2 (1), 47–58. doi:10.1021/acsaem.8b01567

Exposure-dependent refractive index of Nanoscribe IP-Dip photoresist layers
Dottermusch, S.; Busko, D.; Langenhorst, M.; Paetzold, U. W.; Richards, B. S.
2019. Optics letters, 44 (1), 29. doi:10.1364/OL.44.000029

High Quantum Yield Single-Band Green Upconversion in La₂O₃:Yb³⁺, Ho³⁺ Microcrystals for Anticounterfeiting and Plastic Recycling
Gao, G.; Busko, D.; Joseph, R.; Turshatov, A.; Howard, I. A.; Richards, B. S.
2019. Particle & Particle Systems Characterization, 36 (3), Art.-Nr.: 1800462. doi:10.1002/ppsc.201800462

Self-cleaning performance of superhydrophobic hot-embossed fluoropolymer films for photovoltaic modules
Roslizar, A.; Dottermusch, S.; Vüllers, F.; Kavalenka, M. N.; Guttmann, M.; Schneider, M.; Paetzold, U. W.; Hölscher, H.; Richards, B. S.; Klampaftis, E.
2019. Solar energy materials & solar cells, 189, 188–196. doi:10.1016/j.solmat.2018.09.017

Anisotropic energy transfer in crystalline chromophore assemblies
Haldar, R.; Jakoby, M.; Mazel, A.; Zhang, Q.; Welle, A.; Mohamed, T.; Krolla, P.; Wenzel, W.; Diring, S.; Odobel, F.; Richards, B. S.; Howard, I. A.; Wöll, C.
2018. Nature Communications, 9 (1), Art.Nr. 4332. doi:10.1038/s41467-018-06829-3

Highly Efficient La₂O₃:Yb³⁺,Tm³⁺ Single-Band NIR-to-NIR Upconverting Microcrystals for Anti-Counterfeiting Applications
Gao, G.; Busko, D.; Joseph, R.; Howard, I. A.; Turshatov, A.; Richards, B. S.
2018. ACS applied materials & interfaces, 10 (46), 39851–39859. doi:10.1021/acsami.8b11196

Photocurrent enhancement for ultrathin crystalline silicon solar cells via a bioinspired polymeric nanofur film with high forward scattering
Yan, W.; Huang, Y.; Wang, L.; Vüllers, F.; Kavalenka, M. N.; Hölscher, H.; Dottermusch, S.; Richards, B. S.; Klampaftis, E.
2018. Solar energy materials & solar cells, 186, 105–110. doi:10.1016/j.solmat.2018.06.034

Towards mass fabrication of hot embossed plant surface texture replicas as photovoltaic cover layers
Fritz, B.; Guttmann, M.; Casas Soler, P.; Roslizar, A.; Langenhorst, M.; Schneider, M.; Paetzold, U. W.; Richards, B. S.; Lemmer, U.; Huenig, R.; Gomard, G.
2018. SPIE Nanoscience + Engineering - Nanoengineering: Fabrication, Properties, Optics, and Devices XV, San Diego, United States, USA,19–23 August 2018. Ed.: B. Panchapakesan, 107300J-1–17, Society of Photo-optical Instrumentation Engineers (SPIE). doi:10.1117/12.2320555

Inkjet-Printed Photoluminescent Patterns of Aggregation-Induced-Emission Chromophores on Surface-Anchored Metal–Organic Frameworks
Baroni, N.; Turshatov, A.; Adams, M.; Dolgopolova, E. A.; Schlisske, S.; Hernandez-Sosa, G.; Wöll, C.; Shustova, N. B.; Richards, B. S.; Howard, I. A.
2018. ACS applied materials & interfaces, 10 (30), 25754–25762. doi:10.1021/acsami.8b05568

A method for correcting the excitation power density dependence of upconversion emission due to laser-induced heating
Joseph, R. E.; Busko, D.; Hudry, D.; Gao, G.; Biner, D.; Krämer, K.; Turshatov, A.; Richards, B. S.; Howard, I. A.
2018. Optical materials, 82, 65–70. doi:10.1016/j.optmat.2018.05.025

Freeform surface invisibility cloaking of interconnection lines in thin-film photovoltaic modules
Langenhorst, M.; Schumann, M. F.; Paetel, S.; Schmager, R.; Lemmer, U.; Richards, B. S.; Wegener, M.; Paetzold, U. W.
2018. Solar energy materials & solar cells, 182, 294–301. doi:10.1016/j.solmat.2018.03.034

Stable Perovskite Solar Cell Architectures: Robustness against Temperature Variations Under Real World Conditions
Schwenzer, J. A.; Rakocevic, L.; Abzieher, T.; Rueda-Delgad, D.; Gehlhaar, R.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2018. 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion (WCPEC), 2816–2819, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8547781

Geometrical concentration for enhanced up-conversion: A review of recent results in energy and biomedical applications
Arnaoutakis, G. E.; Richards, B. S.
2018. Optical materials, 83, 47–54. doi:10.1016/j.optmat.2018.05.064

Inkjet-Printed Triple Cation Perovskite Solar Cells
Mathies, F.; Eggers, H.; Richards, B. S.; Hernandez-Sosa, G.; Lemmer, U.; Paetzold, U. W.
2018. ACS Applied Energy Materials, 1 (5), 1834–1839. doi:10.1021/acsaem.8b00222

Temperature Variation-Induced Performance Decline of Perovskite Solar Cells
Schwenzer, J. A.; Rakocevic, L.; Gehlhaar, R.; Abzieher, T.; Gharibzadeh, S.; Moghadamzadeh, S.; Quintilla, A.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.
2018. ACS applied materials & interfaces, 10 (19), 16390–16399. doi:10.1021/acsami.8b01033

Towards nano-patterned perovskite layers for enhanced absorption in solar cells
Schmager, R.; Abzieher, T.; Brenner, P.; Assadillayev, A.; Lee, D. J.; Moghadamzadeh, S.; Hossain, I. M.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2018. 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018; Waikoloa Village; United States; 10 June 2018 through 15 June 2018, 15–17, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8548029

Inkjet Printed Perovskite Photovoltaics
Mathies, F.; Richards, B. S.; Hernandez-Sosa, G.; Lemmer, U.; Paetzold, U. W.
2018. 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018; Waikoloa Village; United States; 10 June 2018 through 15 June 2018, 1721–1723, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2018.8548265

Design and Color Flexibility for Inkjet-Printed Perovskite Photovoltaics
Schlisske, S.; Mathies, F.; Busko, D.; Strobel, N.; Rödlmeier, T.; Richards, B. S.; Lemmer, U.; Paetzold, U. W.; Hernandez-Sosa, G.; Klampaftis, E.
2018. ACS applied energy materials, 2 (1), 764–769. doi:10.1021/acsaem.8b01829

Interface disorder in large single- and multi-shell upconverting nanocrystals
Hudry, D.; Popescu, R.; Busko, D.; Diaz-Lopez, M.; Abeykoon, M.; Bordet, P.; Gerthsen, D.; Howard, I. A.; Richards, B. S.
2018. Journal of materials chemistry / C, 2019 (7), 1164–1172. doi:10.1039/C8TC05130E

Energy yield of all thin-film perovskite/CIGS tandem solar modules
Langenhorst, M.; Sautter, B.; Schmager, R.; Lehr, J.; Ahlswede, E.; Powalla, M.; Lemmer, U.; Richards, B. S.; Paetzold, U. W.
2018. Progress in photovoltaics, 27 (4), 290–298. doi:10.1002/pip.3091

Energy Yield Modelling of Wide Bandgap Perovskite-Based Tandem Solar Modules
Langenhorst, M.; Lehr, J.; Sautter, B.; Schmager, R.; Lemmer, U.; Richards, B.; Paetzold, U. W.
2018. Optics for Solar Energy, Singapore, 5–8 November 2018, OW5C.3/1–2, Optica Publishing Group (OSA). doi:10.1364/OSE.2018.OW5C.3

A Novel Route to Plastics Recycling via Unique, Background-free, Micro-scale Photonic Markers
Richards, B. S.; Busko, D.; Gao, G.; Hudry, D.; Howard, I. A.; Turshatov, A.
2018. Optics and Photonics for Energy and the Environment, Singapore, 5–8 November 2018, EM2A.4, Optica Publishing Group (OSA). doi:10.1364/EE.2018.EM2A.4

Impact of Fabrication Parameters on the Self-cleaning Performance of Hot-embossed Fluoropolymer Films for Photovoltaic Modules
Roslizar, A.; Dottermusch, S.; Vüllers, F.; Kavalenka, M. N.; Guttmann, M.; Schneider, M.; Klampaftis, E.; Paetzold, U. W.; Hölscher, H.; Richards, B. S.
2018. Optics for Solar Energy, Singapore, 5–8 November 2018, OM3D.4, Optica Publishing Group (OSA). doi:10.1364/OSE.2018.OM3D.4

Realization of Colors and Patterns for Inkjet-Printed Perovskite Solar Cells
Schlisske, S.; Mathies, F.; Busko, D.; Strobel, N.; Rödlmeier, T.; Lemmer, U.; Paetzold, U. W.; Hernandez-Sosa, G.; Klampaftis, E.; Richards, B. S.
2018. Optics and Photonics for Energy and the Environment, Singapore, 5–8 November 2018, JM4A.6, Optica Publishing Group (OSA). doi:10.1364/EE.2018.JM4A.6

Reaction of porphyrin-based surface-anchored metal-organic frameworks to prolonged illumination
Adams, M.; Baroni, N.; Oldenburg, M.; Kraffert, F.; Behrends, J.; MacQueen, R. W.; Haldar, R.; Busko, D.; Turshatov, A.; Emandi, G.; Senge, M. O.; Wöll, C.; Lips, K.; Richards, B. S.; Howard, I. A.
2018. Physical chemistry, chemical physics, 46, 29142–29151. doi:10.1039/C8CP05254A

Energy yield modelling of perovskite/silicon two-terminal tandem PV modules with flat and textured interfaces
Lehr, J.; Langenhorst, M.; Schmager, R.; Kirner, S.; Lemmer, U.; Richards, B. S.; Case, C.; Paetzold, U. W.
2018. Sustainable energy & fuels, 2018 (2), 2754–2761. doi:10.1039/C8SE00465J

Rigorous wave-optical treatment of photon recycling in thermodynamics of photovoltaics: Perovskite thin-film solar cells
Abebe, M. G.; Abass, A.; Gomard, G.; Zschiedrich, L.; Lemmer, U.; Richards, B. S.; Rockstuhl, C.; Paetzold, U. W.
2018. Physical review / B, 98 (7), Article: 075141. doi:10.1103/PhysRevB.98.075141

Absolute upconversion quantum yields of blue-emitting LiYF4:Yb3+,Tm3+ upconverting nanoparticles
Meijer, M. S.; Rojas-Gutierrez, P. A.; Busko, D.; Howard, I. A.; Frenzel, F.; Würth, C.; Resch-Genger, U.; Richards, B. S.; Turshatov, A.; Capobianco, J. A.; Bonnet, S.
2018. Physical chemistry, chemical physics, 20, 22556–22562. doi:10.1039/C8CP03935F

Spectral Dependence of Degradation under Ultraviolet Light in Perovskite Solar Cells
Farooq, A.; Hossain, I. M.; Moghadamzadeh, S.; Schwenzer, J. A.; Abzieher, T.; Richards, B. S.; Klampaftis, E.; Paetzold, U. W.
2018. ACS applied materials & interfaces, 10 (26), 21985–21990. doi:10.1021/acsami.8b03024

Up-conversion quantum yields of SrF2:Yb3+,Er3+ sub-micron particles prepared by precipitation from aqueous solution
Kuznetsov, S.; Ermakova, Y.; Voronov, V.; Fedorov, P.; Busko, D.; Howard, I. A.; Richards, B. S.; Turshatov, A.
2018. Journal of materials chemistry / C, 6 (3), 598–604. doi:10.1039/C7TC04913G

Enhancing the photoluminescence of surface anchored metal–organic frameworks: mixed linkers and efficient acceptors
Oldenburg, M.; Turshatov, A.; Busko, D.; Jakoby, M.; Haldar, R.; Chen, K.; Emandi, G.; Senge, M. O.; Wöll, C.; Hodgkiss, J. M.; Richards, B. S.; Howard, I. A.
2018. Physical chemistry, chemical physics, 20 (17), 11564–11576. doi:10.1039/C7CP08452H

Wide-range non-contact fluorescence intensity ratio thermometer based on Yb³⁺/Nd³⁺ co-doped La₂O₃ microcrystals operating from 290 to 1230 K
Gao, G.; Busko, D.; Kauffmann-Weiss, S.; Turshatov, A.; Howard, I. A.; Richards, B. S.
2018. Journal of materials chemistry / C, 6 (15), 4163–4170. doi:10.1039/C8TC00782A

Highly photoluminescent and stable silicon nanocrystals functionalized via microwave-assisted hydrosilylation
Beri, D.; Busko, D.; Mazilkin, A.; Howard, I. A.; Richards, B. S.; Turshatov, A.
2018. RSC Advances, 8 (18), 9979–9984. doi:10.1039/C7RA13577G

Enhanced upconversion in one-dimensional photonic crystals: a simulation-based assessment within realistic material and fabrication constraints
Hofmann, C. L. M.; Eriksen, E. H.; Fischer, S.; Richards, B. S.; Balling, P.; Goldschmidt, J. C.
2018. Optics express, 26 (6), 7537–7554. doi:10.1364/OE.26.007537

CZTSe solar cells prepared by co-evaporation of Cu-Sn/CZTSe/ZnSe/CZTSe layer stacks
Mwakysa, L.; Neuwirth, M.; Paetzold, U.; Richards, B.; Kalt, H.; Hetterich, M.
2018. DPG-Frühjahrstagung der Sektion Kondensierte Materie gemeinsam mit der EPS (2018), Berlin, Germany, March 11–16, 2018

The Janus-faced chromophore : A donor-acceptor dyad with dual performance in photon up-conversion
Kiseleva, N.; Filatov, M. A.; Oldenburg, M.; Busko, D.; Jakoby, M.; Howard, I. A.; Richards, B. S.; Senge, M. O.; Borisov, S. M.; Turshatov, A.
2018. Chemical communications, 54 (13), 1607–1610. doi:10.1039/c7cc08930a

Self-Cleaning Microcavity Array for Photovoltaic Modules
Vüllers, F.; Fritz, B.; Roslizar, A.; Striegel, A.; Guttmann, M.; Richards, B. S.; Hölscher, H.; Gomard, G.; Klampaftis, E.; Kavalenka, M. N.
2017. ACS applied materials & interfaces, 10 (3), 2929–2936. doi:10.1021/acsami.7b15579

Direct Evidence of Significant Cation Intermixing in Upconverting Core@Shell Nanocrystals : Toward a New Crystallochemical Model
Hudry, D.; Busko, D.; Popescu, R.; Gerthsen, D.; Abeykoon, A. M. M.; Kübel, C.; Bergfeldt, T.; Richards, B. S.
2017. Chemistry of materials, 29 (21), 9238–9246. doi:10.1021/acs.chemmater.7b03118

Water-Energy Nexus Perspectives in the Context of Photovoltaic-Powered Decentralized Water Treatment Systems : A Tanzanian Case Study
Richards, B. S.; Shen, J.; Schäfer, A. I.
2017. Energy technology, 5 (7), 1112–1123. doi:10.1002/ente.201600728

Scalable perovskite/CIGS thin-film solar module with power conversion efficiency of 17.8%
Paetzold, U. W.; Jaysankar, M.; Gehlhaar, R.; Ahlswede, E.; Paetel, S.; Qiu, W.; Bastos, J.; Rakocevic, L.; Richards, B. S.; Aernouts, T.; Powalla, M.; Poortmans, J.
2017. Journal of materials chemistry / A, 5 (20), 9897–9906. doi:10.1039/C7TA01651D

Performance of silicon solar cells with cloaked contact fingers under realistic conditions
Langenhorst, M.; Schumann, M. F.; Schmager, R.; Lehr, J.; Lemmer, U.; Wegener, M.; Richards, B.; Paetzold, U. W.
2017. Optical Nanostructures and Advanced Materials for Photovoltaics, Boulder, United States, 6th - 9th November 2017, Optica Publishing Group (OSA). doi:10.1364/PV.2017.PW2A.3

Co-precipitation synthesis and photoluminescence properties of BaTiF6:Mn4+:an efficient red phosphor for warm white LEDs
Liu, Y.; Gao, G.; Huang, L.; Zhu, Y.; Zhang, X.; Yu, J.; Richards, B. S.; Xuan, T.; Wang, Z.; Wang, J.
2017. Journal of materials chemistry / C, 6 (1), 127–133. doi:10.1039/C7TC04196A

Finely-tuned NIR-to-visible up-conversion in La2O3:Yb3+,Er3+ microcrystals with high quantum yield
Gao, G.; Busko, D.; Kauffmann-Weiss, S.; Turshatov, A.; Howard, I. A.; Richards, B. S.
2017. Journal of materials chemistry / C, 5 (42), 11010–11017. doi:10.1039/C6TC05322J

Triple cation mixed-halide perovskites for tunable lasers
Brenner, P.; Glöckler, T.; Rueda-Delgado, D.; Abzieher, T.; Jakoby, M.; Richards, B. S.; Paetzold, U. W.; Howard, I. A.; Lemmer, U.
2017. Optical materials express, 7 (11), 4082–4094. doi:10.1364/OME.7.004082

Texture of the Viola Flower for Light Harvesting in Photovoltaics
Schmager, R.; Fritz, B.; Hünig, R.; Ding, K.; Lemmer, U.; Richards, B. S.; Gomard, G.; Paetzold, U. W.
2017. ACS photonics, 2687–2692. doi:10.1021/acsphotonics.7b01153

Excitonically Coupled States in Crystalline Coordination Networks
Haldar, R.; Mazel, A.; Joseph, R.; Adams, M.; Howard, I. A.; Richards, B. S.; Tsotsalas, M.; Redel, E.; Diring, S.; Odobel, F.; Wöll, C.
2017. Chemistry - a European journal, 23 (57), 14316–14322. doi:10.1002/chem.201702968

Monodisperse β-NaYF₄:Yb,Tm hexagonal microplates with efficient NIR-to-NIR up-conversion emission developed via ion exchange
Fan, S.; Gao, G.; Busko, D.; Lin, Z.; Wang, S.; Wang, X.; Sun, S.; Turshatov, A.; Richards, B. S.; Sun, H.; Hu, L.
2017. Journal of materials chemistry / C, 5 (37), 9770–9777. doi:10.1039/C7TC03373G

Potential of Silicon Phononic Crystals for Photovoltaic Applications
Yan, W.; Richards, B. S.
2017. IEEE journal of photovoltaics, 7 (6), 1503–1510. doi:10.1109/JPHOTOV.2017.2735024

Facile loading of thin-film surface-anchored metal-organic frameworks with Lewis-base guest molecules
Baroni, N.; Turshatov, A.; Oldenburg, M.; Busko, D.; Adams, M.; Haldar, R.; Welle, A.; Redel, E.; Wöll, C.; Richards, B. S.; Howard, I. A.
2017. Materials chemistry frontiers, 1 (9), 1888–1894. doi:10.1039/C7QM00142H

Up-Conversion Fluorescent Labels for Plastic Recycling: A Review
Gao, G.; Turshatov, A.; Howard, I. A.; Busko, D.; Joseph, R.; Hudry, D.; Richards, B. S.
2017. Advanced Sustainable Systems, 1 (5), Art.Nr. 1600033. doi:10.1002/adsu.201600033

Infiltrated photonic crystals for light-trapping in CuInSe₂ nanocrystal-based solar cells
Dottermusch, S.; Quintilla, A.; Gomard, G.; Roslizar, A.; Voggu, V. R.; Simonsen, B. A.; Park, J. S.; Pernik, D. R.; Korgel, B. A.; Paetzold, U. W.; Richards, B. S.
2017. Optics express, 25 (12), A502-A514. doi:10.1364/OE.25.00A502

Photocurrent enhancement of ultrathin front-textured crystalline silicon solar cells by rear-located periodic silver nanoarrays
Yan, W.; Tao, Z.; Gu, M.; Richards, B. S.
2017. Solar energy, 150, 156–160. doi:10.1016/j.solener.2017.04.046

Room-Temperature High-Efficiency Solid-State Triplet-Triplet Annihilation Up-Conversion in Amorphous Poly(olefin sulfone)s
Turshatov, A.; Busko, D.; Kiseleva, N.; Grage, S. L.; Howard, I. A.; Richards, B. S.
2017. ACS applied materials & interfaces, 9 (9), 8280–8286. doi:10.1021/acsami.6b12625

Bragg Stacks Enhancing Upconversion for Photovoltaics: A Theoretical And Experimental Analysis
Hofmann, C. L.; Fischer, S.; Reitz, C.; Mondon, A.; Busko, D.; Howard, I.; Richards, B. S.; Goldschmidt, J. C.
2016. Light, Energy and the Environment Congress, November 14-17, 2016, Leipzig, Germany, PTh4A.5, Optica Publishing Group (OSA). doi:10.1364/PV.2016.PTh4A.5

Simulation of Absorption Enhancement and Optical Modes in CIS Nanocrystal Embedded Photonic Crystal Designs
Dottermusch, S.; Quintilla, A.; Gomard, G.; Paetzold, U. W.; Richards, B. S.
2016. Light, Energy and the Environment Congress, November 14-17, 2016, Leipzig, Germany, PTu2B.3, Optica Publishing Group (OSA). doi:10.1364/PV.2016.PTu2B.3

Direct Laser Written Nanophotonics for Embedded CIS Nanocrystal Solar Cells
Dottermusch, S.; Quintilla, A.; Gomard, G.; Pernik, D.; Reddy, V.; Korgel, B.; Paetzold, U. W.; Richards, B. S.
2016. Light, Energy and the Environment Congress, November 14-17, 2016, Leipzig, Germany, PW3B.2, Optica Publishing Group (OSA). doi:10.1364/PV.2016.PW3B.2

Investigation of Host Polymers for Luminescent Solar Concentrators
Zettl, M.; Mayer, O.; Klampaftis, E.; Richards, B. S.
2016. Energy technology, 5 (7), 1037–1044. doi:10.1002/ente.201600498

Hexagonal arrays of round-head silicon nanopillars for surface anti-reflection applications
Yan, W.; Dottermusch, S.; Reitz, C.; Richards, B. S.
2016. Applied physics letters, 109 (14), 143901. doi:10.1063/1.4963912

Bioinspired Superhydrophobic Highly Transmissive Films for Optical Applications
Vüllers, F.; Gomard, G.; Preinfalk, J. B.; Klampaftis, E.; Worgull, M.; Richards, B.; Hölscher, H.; Kavalenka, M. N.
2016. Small. doi:10.1002/smll.201601443

Renewable energy powered membrane technology: Case study of St. Dorcas borehole in Tanzania demonstrating fluoride removal via nanofiltration/reverse osmosis
Shen, J.; Richards, B. S.; Schäfer, A. I.
2016. Separation and purification technology, 170, 445–452. doi:10.1016/j.seppur.2016.06.042

Spectroscopy and near infrared upconversion of Er³⁺-doped TZNT glasses
Venkata Krishnaiah, K.; Marques-Hueso, J.; Suresh, K.; Venkataiah, G.; Richards, B. S.; Jayasankar, C. K.
2016. Journal of Luminescence, 169, 270–276. doi:10.1016/j.jlumin.2015.08.035

Highly efficient upconversion in Er3+ doped BaY2F8 single crystals: Dependence of quantum yield on excitation wavelength and thickness
Boccolini, A.; Favilla, E.; Tonelli, M.; Richards, B. S.; Thomson, R. R.
2015. Optics Express, 23 (15), A903-A915. doi:10.1364/OE.23.00A903

Enhanced energy conversion of up-conversion solar cells by the integration of compound parabolic concentrating optics
Arnaoutakis, G. E.; Marques-Hueso, J.; Ivaturi, A.; Fischer, S.; Goldschmidt, J. C.; Kraemer, K. W.; Richards, B. S.
2015. Solar Energy Materials and Solar Cells, 140, 217–223. doi:10.1016/j.solmat.2015.04.020

Renewable energy powered membrane technology: Impact of solar irradiance fluctuations on performance of a brackish water reverse osmosis system
Richards, B. S.; Capao, D. P. S.; Früh, W. G.; Schäfer, A. I.
2015. Separation and Purification Technology, 156, 379–390. doi:10.1016/j.seppur.2015.10.025

Integrating photovoltaic cells into decorative architectural glass using traditonal glass-painting techniques and fluorescent dyes
Hardy, D. A.; Roaf, S. C.; Richards, B. S.
2015. International journal of sustainable development and planning, 10, 863–879. doi:10.2495/SDP-V10-N6-863-879

Integration of color and graphical design for photovoltaic modules using luminescent materials
Klampaftis, E.; Ross, D.; Kocher-Oberlehner, G.; Richards, B. S.
2015. IEEE journal of photovoltaics, 5 (2), 584–590. doi:10.1109/JPHOTOV.2015.2392934

Broadband near-infrared luminescence and visible upconversion of Er³⁺-doped Tungstate-Tellurite glasses
Krishnaiah, K. V.; Venkataiah, G.; Marques-Hueso, J.; Dharmaiah, P.; Jayasankar, C. K.; Richards, B. S.
2015. Science of Advanced Materials, 7 (2), 345–353. doi:10.1166/sam.2015.2027

Renewable Energy Powered Membrane Technology: A Leapfrog Approach to Rural Water Supply Technologies in Developing Countries?
Schäfer, A. I.; Hughes, G.; Richards, B. S.
2014. Renewable & sustainable energy reviews, (40), 542–556. doi:10.1016/j.rser.2014.07.164

Color, graphic design and high efficiency for photovoltaic modules
Klampaftis, E.; Ross, D.; Richards, B. S.
2014. 40th IEEE Photovoltaic Specialist Conference (PVSC), Denver, Colo., June 8-13, 2014

Up-conversion enhancement in photovoltaic devices via non-imaging optics
Arnaoutakis, G.; Marques Hueso, J.; Goldschmidt, J. C.; Krämer, K. W.; Richards, B. S.
2014. 29th European Photovoltaic Solar Energy Conf.and Exhibition (EU PVSEC 2014), Amsterdam, NL, September 22-26, 2014

Record efficient upconverter solar cell devices
Goldschmidt, J. C.; Fischer, S.; Herter, B.; Fröhlich, B.; Krämer, K. W.; Richards, B. S.; Ivaturi, A.; MacDougall, S. K. W.; Marques Hueso, J.; Favilla, E.; Tonelli, M.
2014. 29th European Photovoltaic Solar Energy Conf.and Exhibition (EU PVSEC 2014), Amsterdam, NL, September 22-26, 2014

Color, graphic design and high efficiency for photovoltaic modules
Klampaftis, E.; Ross, D.; Richards, B. S.
2014. Proceedings of the 40th IEEE Photovoltaic Specialist Conference (PVSC), Denver, CO., June 8-13, 2014, 0025–0029, Institute of Electrical and Electronics Engineers (IEEE). doi:10.1109/PVSC.2014.6925025

Up-conversion enhancement in photovoltaic devices via non-imaging optics
Arnaoutakis, G.; Marques Hueso, J.; Goldschmidt, J. C.; Krämer, K. W.; Richards, B. S.
2014. 29th European Photovoltaic Solar Energy Conf.and Exhibition (EU PVSEC 2014), Amsterdam, NL, September 22-26, 2014, 352–355

Record efficient upconverter solar cell devices
Goldschmidt, J. C.; Fischer, S.; Herter, B.; Fröhlich, B.; Krämer, K. W.; Richards, B. S.; Ivaturi, A.; MacDougall, S. K. W.; Marques Hueso, J.; Favilla, E.; Tonelli, M.
2014. 29th European Photovoltaic Solar Energy Conf.and Exhibition (EU PVSEC 2014), Amsterdam, NL, September 22-26, 2014, 1–4

External thermalization of carriers with luminescent down shifting for lower operating solar cell temperature
Alonso-Alvarez, D.; Klampaftis, E.; Ross, D.; Richards, B. S.
2014. IEEE journal of photovoltaics, 4, 1532–1537. doi:10.1109/JPHOTOV.2014.2356398

Renewable energy powered membrane technology: Brackish water desalination system operated using real wind fluctuations and energy buffering
Richards, B. S.; Park, G. L.; Pietzsch, T.; Schäfer, A. I.
2014. Journal of membrane science, 468, 224–232. doi:10.1016/j.memsci.2014.05.054

Renewable energy powered membrane technology: Safe operating window of a brackish water desalination system
Richards, B. S.; Park, G. L.; Pietzsch, T.; Schäfer, A. I.
2014. Journal of membrane science, 468, 400–409. doi:10.1016/j.memsci.2014.05.053