Publications

Degradation of Perovskite Solar Cells Induced by Intrinsic Stress Factors. PhD dissertation
Singh, R.
2026, January 14. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000189578

Accumulated Structural Evolution under Diurnal Cycling Degrades Wide-Bandgap Perovskite Solar Cells
Zhao, T.; Elshanawany, M. M.; Singh, R.; Guo, R.; Richards, B. S.; Paetzold, U. W.
2025. ACS Energy Letters, 10 (10), 4740–4748. doi:10.1021/acsenergylett.5c02064

Versatile Two‐Step Process for Perovskite‐Based Tandem Photovoltaics
Pappenberger, R.; Singh, R.; Diercks, A.; Zhao, T.; Pesch, R.; Petry, J.; Baumann, D.; Liu, X.; Paetzold, U. W.
2025. Solar RRL, 9 (13), Art.-Nr.: 2500193. doi:10.1002/solr.202500193

Sequential Evaporation of Inverted FAPbI 3 Perovskite Solar Cells – Impact of Substrate on Crystallization and Film Formation
Diercks, A.; Petry, J.; Feeney, T.; Singh, R.; Zhao, T.; Hu, H.; Li, Y.; Paetzold, U. W.; Fassl, P.
2025. ACS Energy Letters, 10 (3), 1165–1173. doi:10.1021/acsenergylett.4c03315

Laminated Two-Terminal All-Perovskite Tandem Solar Cells with Transparent Conductive Adhesives
Hu, H.; Pan, T.; Singh, R.; Nejand, B. A.; Paetzold, U. W.; Wen, J.
2025. ACS Applied Materials and Interfaces, 17 (5), 7804–7810. doi:10.1021/acsami.4c19405

High‐Rate FA‐Based Co‐Evaporated Perovskites: Understanding Rate Limitations and Practical Considerations to Overcome Their Impact
Feeney, T.; Miaskiewicz, A.; Petry, J.; Laufer, F.; Singh, R.; Severin, S.; Škorjanc, V.; Diercks, A.; Maniyarasu, S.; Korte, L.; Albrecht, S.; Paetzold, U. W.; Roß, M.; Fassl, P.
2025. Advanced Functional Materials, Art.-NR:. e17873. doi:10.1002/adfm.202517873

Repeatable Perovskite Solar Cells through Fully Automated Spin-Coating and Quenching
Baumann, D. O.; Laufer, F.; Roger, J.; Singh, R.; Gholipoor, M.; Paetzold, U. W.
2024. ACS Applied Materials & Interfaces, 16 (40), 54007–54016. doi:10.1021/acsami.4c13024

Danger in the Dark: Stability of Perovskite Solar Cells with Varied Stoichiometries and Morphologies Stressed at Various Conditions
Singh, R.; Hu, H.; Feeney, T.; Diercks, A.; Laufer, F.; Li, Y.; Schackmar, F. R.; Abdollahi Nejand, B.; Paetzold, U.
2024. ACS applied materials & interfaces, 16 (21), 27450–27462. doi:10.1021/acsami.4c04350

Triple-junction perovskite–perovskite–silicon solar cells with power conversion efficiency of 24.4%
Hu, H.; An, S. X.; Li, Y.; Orooji, S.; Singh, R.; Schackmar, F.; Laufer, F.; Jin, Q.; Feeney, T.; Diercks, A.; Gota, F.; Moghadamzadeh, S.; Pan, T.; Rienäcker, M.; Peibst, R.; Nejand, B. A.; Paetzold, U. W.
2024. Energy & Environmental Science, 17 (8), 2800 – 2814. doi:10.1039/d3ee03687a

Inkjet-printed optical interference filters
Jin, Q.; Zhang, Q.; Rainer, C.; Hu, H.; Chen, J.; Gehring, T.; Dycke, J.; Singh, R.; Paetzold, U. W.; Hernández-Sosa, G.; Kling, R.; Lemmer, U.
2024. Nature Communications, 15 (1), Article no: 3372. doi:10.1038/s41467-024-47086-x

Void-free buried interface for scalable processing of p-i-n-based FAPbI3 perovskite solar modules
Hu, H.; Ritzer, D. B.; Diercks, A.; Li, Y.; Singh, R.; Fassl, P.; Jin, Q.; Schackmar, F.; Paetzold, U. W.; Nejand, B. A.
2023. Joule, 7 (7), 1574–1592. doi:10.1016/j.joule.2023.05.017

In Situ Process Monitoring and Multichannel Imaging for Vacuum‐Assisted Growth Control of Inkjet‐Printed and Blade‐Coated Perovskite Thin‐Films
Schackmar, F.; Laufer, F.; Singh, R.; Farag, A.; Eggers, H.; Gharibzadeh, S.; Abdollahi Nejand, B.; Lemmer, U.; Hernandez-Sosa, G.; Paetzold, U. W.
2023. Advanced Materials Technologies, 8 (5), Art.-Nr.: 2201331. doi:10.1002/admt.202201331

Evaporated Self‐Assembled Monolayer Hole Transport Layers: Lossless Interfaces in p‐i‐n Perovskite Solar Cells
Farag, A.; Feeney, T.; Hossain, I. M.; Schackmar, F.; Fassl, P.; Küster, K.; Bäuerle, R.; Ruiz-Preciado, M. A.; Hentschel, M.; Ritzer, D. B.; Diercks, A.; Li, Y.; Nejand, B. A.; Laufer, F.; Singh, R.; Starke, U.; Paetzold, U. W.
2023. Advanced Energy Materials, 13 (8), Art.-Nr.: 2203982. doi:10.1002/aenm.202203982

Four-terminal Perovskite/CIGS Tandem Solar Cells: Unveiling the Path to >27% in Power Conversion Efficiency
Hossain, I. M.; Feeney, T.; Gharibzadeh, S.; Gota, F.; Singh, R.; Fassl, P.; Mertens, A.; Farag, A.; Becker, J.-P.; Paetel, S.; Ahlswede, E.; Paetzold, U. W.
2022. Solar RRL, 6 (12), Art.Nr. 2200662. doi:10.1002/solr.202200662

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

Monolithic Two-Terminal Perovskite/CIS Tandem Solar Cells with Efficiency Approaching 25%
Ruiz-Preciado, M. A.; Gota, F.; Fassl, P.; Hossain, I. M.; Singh, R.; Laufer, F.; Schackmar, F.; Feeney, T.; Farag, A.; Allegro, I.; Hu, H.; Gharibzadeh, S.; Nejand, B. A.; Gevaerts, V. S.; Simor, M.; Bolt, P. J.; Paetzold, U. W.
2022. ACS Energy Letters, 7 (7), 2273–2281. doi:10.1021/acsenergylett.2c00707

Two birds with one stone: dual grain-boundary and interface passivation enables >22% efficient inverted methylammonium-free perovskite solar cells
Gharibzadeh, S.; Fassl, P.; Hossain, I. M.; Rohrbeck, P.; Frericks, M.; Schmidt, M.; Duong, T.; Khan, M. R.; Abzieher, T.; Nejand, B. A.; Schackmar, F.; Almora, O.; Feeney, T.; Singh, R.; Fuchs, D.; Lemmer, U.; Hofmann, J. P.; Weber, S. A. L.; Paetzold, U. W.
2021. Energy & environmental science, 14 (11), 5875–5893. doi:10.1039/D1EE01508G

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