Linked Nickel Oxide/Perovskite Interface Passivation for High-Performance Textured Monolithic Tandem Solar Cells
Isikgor, Furkan Halis
de Bastiani, Michele
Subbiah, Anand Selvin
Mirabelli, Alessandro James
Harrison, George T.
Rehman, Atteq Ur
Mohammed, Omar F.
De Wolf, Stefaan
KAUST DepartmentKing Abdullah University of Science and Technology (KAUST) KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) Thuwal 23955-6900 Kingdom of Saudi Arabia
KAUST Solar Center (KSC)
Physical Science and Engineering (PSE) Division
KAUST Catalysis Center (KCC)
Material Science and Engineering Program
Chemical Science Program
Embargo End Date2022-09-05
Permanent link to this recordhttp://hdl.handle.net/10754/670975
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AbstractSputtered nickel oxide (NiOx) is an attractive hole-transport layer for efficient, stable, and large-area p-i-n metal-halide perovskite solar cells (PSCs). However, surface traps and undesirable chemical reactions at the NiOx/perovskite interface are limiting the performance of NiOx-based PSCs. To address these issues simultaneously, an efficient NiOx/perovskite interface passivation strategy by using an organometallic dye molecule (N719) is reported. This molecule concurrently passivates NiOx and perovskite surface traps, and facilitates charge transport. Consequently, the power conversion efficiency (PCE) of single-junction p-i-n PSCs increases from 17.3% to 20.4% (the highest reported value for sputtered-NiOx based PSCs). Notably, the N719 molecule self-anchors and conformally covers NiOx films deposited on complex surfaces. This enables highly efficient textured monolithic p-i-n perovskite/silicon tandem solar cells, reaching PCEs up to 26.2% (23.5% without dye passivation) with a high processing yield. The N719 layer also forms a barrier that prevents undesirable chemical reactions at the NiOx/perovskite interface, significantly improving device stability. These findings provide critical insights for improved passivation of the NiOx/perovskite interface, and the fabrication of highly efficient, robust, and large-area perovskite-based optoelectronic devices.
CitationZhumagali, S., Isikgor, F. H., Maity, P., Yin, J., Ugur, E., De Bastiani, M., … De Wolf, S. (2021). Linked Nickel Oxide/Perovskite Interface Passivation for High-Performance Textured Monolithic Tandem Solar Cells. Advanced Energy Materials, 2101662. doi:10.1002/aenm.202101662
SponsorsS.Z. and F.H.I. contributed equally to this work. The authors thank the members of the KAUST Solar Center operations team for their technical help and support. This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award no. KAUST OSR-2018-CARF/CCF-3079, KAUST OSR-CRG RF/1/3383, KAUST OSR-CRG2018-3737, and IED OSR-2019-4208.
JournalAdvanced Energy Materials