Oral exam: 21.04.2026
Referee: Prof. Dr. rer. nat. Uli Paetzold
2nd refree: Prof. Dr. rer. nat. Robby Peibst (Leibniz Universität Hannover)
Doctoral exam
Topic: Solution-Based Two-Step Deposition Routes for Perovskite Thin-Film Formation in Photovoltaics
Publications
2026Benchmarking Inorganic Deposition Routes for Hybrid Two‐Step Processed Perovskite Solar Cells: A Materials Perspective
Petry, J.; Pappenberger, R.; Welle, A.; Zhao, T.; Diercks, A.; Pesch, R.; Krause, M.; Fassl, P.; Paetzold, U. W.
2026. Solar RRL, 10 (4). doi:10.1002/solr.202500698
Petry, J.; Pappenberger, R.; Welle, A.; Zhao, T.; Diercks, A.; Pesch, R.; Krause, M.; Fassl, P.; Paetzold, U. W.
2026. Solar RRL, 10 (4). doi:10.1002/solr.202500698
Research data for: Benchmarking Inorganic Deposition Routes for Hybrid Two-Step Processed Perovskite Solar Cells: A Materials Perspective
Petry, J.; Pappenberger, R.; Welle, A.; Zhao, T.; Diercks, A.; Pesch, R.; Krause, M.; Fassl, P.; Paetzold, U. W.
2026, Februar 5. doi:10.35097/0vceqtz3ubr5h240
Petry, J.; Pappenberger, R.; Welle, A.; Zhao, T.; Diercks, A.; Pesch, R.; Krause, M.; Fassl, P.; Paetzold, U. W.
2026, Februar 5. doi:10.35097/0vceqtz3ubr5h240
CsCl Seed Layer Strategy for Enhanced Fabrication Yield and Device Performance of Solution-Based Two-Step Processed Perovskite Solar Cells
Pappenberger, R.; Diercks, A.; Singh, R.; Welle, A.; Zhao, T.; Petry, J.; Paetzold, U. W.
2026. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000194828
Pappenberger, R.; Diercks, A.; Singh, R.; Welle, A.; Zhao, T.; Petry, J.; Paetzold, U. W.
2026. Karlsruher Institut für Technologie (KIT). doi:10.5445/IR/1000194828
2025Efficient Perovskite/Silicon Tandem Solar Cells Using Hybrid Two‐Step Inkjet Printing with Edge Isolation Precision
Pesch, R.; Petry, J.; Petermann, J.; Pappenberger, R.; Kuechle, T.; Schenck, J.; Rothbauer, L. P.; Fang, L.; Liu, X.; Rafizadeh, S.; Nejand, B. A.; Sutter, J.; Lemmer, U.; Paetzold, U. W.
2025. Small Science, 5 (11), e202500362. doi:10.1002/smsc.202500362
Pesch, R.; Petry, J.; Petermann, J.; Pappenberger, R.; Kuechle, T.; Schenck, J.; Rothbauer, L. P.; Fang, L.; Liu, X.; Rafizadeh, S.; Nejand, B. A.; Sutter, J.; Lemmer, U.; Paetzold, U. W.
2025. Small Science, 5 (11), e202500362. doi:10.1002/smsc.202500362
Spatially Regulated Gas Flow Control for Batch‐Drying of Large Area Slot‐Die‐Coated Perovskite Thin Films
Geistert, K.; Pappenberger, R.; Scharfer, P.; Cavadini, P.; Schabel, W.; Sadegh, F.; Ritzer, D. B.; Abdollahi Nejand, B.; Paetzold, U. W.
2025. Advanced Energy Materials, 15 (30), 2500923. doi:10.1002/aenm.202500923
Geistert, K.; Pappenberger, R.; Scharfer, P.; Cavadini, P.; Schabel, W.; Sadegh, F.; Ritzer, D. B.; Abdollahi Nejand, B.; Paetzold, U. W.
2025. Advanced Energy Materials, 15 (30), 2500923. doi:10.1002/aenm.202500923
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
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
Imaging of Recombination Rates and Lifetime in Perovskite Thin Film Processing
Hacene, B.; Rosemann, N. W.; Roger, J.; Liu, X.; Baumann, D. O.; Pappenberger, R.; Gholipoor, M.; Racky, H.; Fassl, P.; Howard, I. A.; Paetzold, U. W.
2025. Small Methods, 9 (7), Art.-Nr.: 2402119. doi:10.1002/smtd.202402119
Hacene, B.; Rosemann, N. W.; Roger, J.; Liu, X.; Baumann, D. O.; Pappenberger, R.; Gholipoor, M.; Racky, H.; Fassl, P.; Howard, I. A.; Paetzold, U. W.
2025. Small Methods, 9 (7), Art.-Nr.: 2402119. doi:10.1002/smtd.202402119
2024Hybrid Two‐Step Inkjet‐Printed Perovskite Solar Cells
Pesch, R.; Diercks, A.; Petry, J.; Welle, A.; Pappenberger, R.; Schackmar, F.; Eggers, H.; Sutter, J.; Lemmer, U.; Paetzold, U. W.
2024. Solar RRL, 8 (13), Art.-Nr.: 2400165. doi:10.1002/solr.202400165
Pesch, R.; Diercks, A.; Petry, J.; Welle, A.; Pappenberger, R.; Schackmar, F.; Eggers, H.; Sutter, J.; Lemmer, U.; Paetzold, U. W.
2024. Solar RRL, 8 (13), Art.-Nr.: 2400165. doi:10.1002/solr.202400165
Bandgap Engineering of Two‐Step Processed Perovskite Top Cells for Perovskite‐Based Tandem Photovoltaics
Pappenberger, R.; Diercks, A.; Petry, J.; Moghadamzadeh, S.; Fassl, P.; Paetzold, U. W.
2024. Advanced Functional Materials, 34 (9), Art.Nr.: 2311424. doi:10.1002/adfm.202311424
Pappenberger, R.; Diercks, A.; Petry, J.; Moghadamzadeh, S.; Fassl, P.; Paetzold, U. W.
2024. Advanced Functional Materials, 34 (9), Art.Nr.: 2311424. doi:10.1002/adfm.202311424
Intensity Dependent Photoluminescence Imaging for In‐Line Quality Control of Perovskite Thin Film Processing
Hacene, B.; Laufer, F.; Ternes, S.; Farag, A.; Pappenberger, R.; Fassl, P.; Moghadamzadeh, S.; Nejand, B. A.; Feeney, T.; Howard, I.; Paetzold, U. W.
2024. Advanced Materials Technologies, 9 (11), Art.-Nr.: 2301279. doi:10.1002/admt.202301279
Hacene, B.; Laufer, F.; Ternes, S.; Farag, A.; Pappenberger, R.; Fassl, P.; Moghadamzadeh, S.; Nejand, B. A.; Feeney, T.; Howard, I.; Paetzold, U. W.
2024. Advanced Materials Technologies, 9 (11), Art.-Nr.: 2301279. doi:10.1002/admt.202301279