Monolithic Perovskite/Silicon Tandems with >28% Efficiency: Role of Silicon-Surface Texture on Perovskite Properties
Authorsde Bastiani, Michele
Jalmood, Rawan S.
Isikgor, Furkan Halis
Selvin, Anand S.
Mirabelli, Alessandro J.
Ur Rehman, Atteq
Van Kerschaver, Emmanuel
Stuckelberger, Michael E.
De Wolf, Stefaan
KAUST DepartmentKAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) 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
KAUST Grant NumberIED OSR-2019-4208
Embargo End Date2023-12-09
Permanent link to this recordhttp://hdl.handle.net/10754/686347
MetadataShow full item record
AbstractTextured silicon wafers used in silicon solar cell manufacturing offer superior light trapping, which is a critical enabler for high-performance photovoltaics. A similar optical benefit can be obtained in monolithic perovskite/silicon tandem solar cells, enhancing the current output of the silicon bottom cell. Yet, such complex silicon surfaces may affect the structural and optoelectronic properties of the overlying perovskite films. Here, through extensive characterization based on optical and microstructural spectroscopy, it is found that the main effect of such substrate morphology lies in an altering of the photoluminescence response of the perovskite, which is associated with thickness variations of the perovskite, rather than lattice strain or compositional changes. With this understanding, the design of high-performance perovskite/silicon tandems is rationalized, yielding certified power conversion efficiencies of >28%.
CitationDe Bastiani, M., Jalmood, R., Liu, J., Ossig, C., Vlk, A., Vegso, K., Babics, M., Isikgor, F. H., Selvin, A. S., Azmi, R., Ugur, E., Banerjee, S., Mirabelli, A. J., Aydin, E., Allen, T. G., Ur Rehman, A., Van Kerschaver, E., Siffalovic, P., Stuckelberger, M. E., … De Wolf, S. (2022). Monolithic Perovskite/Silicon Tandems with >28% Efficiency: Role of Silicon-Surface Texture on Perovskite Properties. Advanced Functional Materials, 2205557. Portico. https://doi.org/10.1002/adfm.202205557
SponsorsThe authors acknowledge the use of KAUST Solar Center and Core Lab facilities and the support from its staff. This work was supported by the King Abdullah University of Science and Technology (KAUST) under award nos. IED OSR-2019-4208, IED OSR-2020-4611, OSR-CRG2019-4093, OSR-CRG2020-4350, OSR-CARF/CCF-3079, and REI/1/4833-01-01. The authors also acknowledge DESY (Hamburg, Germany), a member of the Helmholtz Association HGF, for the provision of experimental facilities. Parts of this research were carried out at PETRA III and the authors would like to thank Jan Garrevoet, Thomas Sheppard, Mikhail Lyubomirskiy, Martin Seyrich, Thea Engler, Ken Vidar Falch, and Gerald Falkenberg for assistance in using beamline P06, and Giovanni Fevola and Svenja Patjens for discussions. Beamtime was allocated for proposal II-20190762. M.L. and A.V. acknowledge Czech Ministry of Education, Youth and Sports grant no. LUASK 22202 and the use of the CzechNanoLab research infrastructure (LM2018110). Furthermore, the authors acknowledge grants APVV-20-0111 and SK-CZ-RD-21-0043 of the Slovak Research and Development Agency.
JournalAdvanced Functional Materials