Optical and Compositional Engineering of Wide Band Gap Perovskites with Improved Stability to Photoinduced Phase Segregation for Efficient Monolithic Perovskite/Silicon Tandem Solar Cells

Kevin A. Bush, Axel F. Palmstrom, Zhengshan Yu, Kyle Frohna, Salman Manzoor, Asad Ali, Waqar Ali, Rohit Prasanna, Rachel E. Beal, Tomas Leijtens, Stacey F. Bent, Zachary Holman, Michael D. McGehee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Metal halide perovskites are promising candidates for the wide band gap top cell in tandem solar cells. By introducing a tin oxide buffer layer via atomic layer deposition, we have improved the efficiency of monolithic, two-terminal, perovskite/silicon tandems to 23.6% by combining an infraredtuned silicon heterojunction bottom cell with the more stable cesium formamidinium lead halide perovskite. We show that further improvements to current and voltage can be made by introducing a PDMS scattering layer to reduce front surface reflection and using compositional engineering to simultaneously increase bandgap and Voc, while mitigating voltage losses arising from photo-induced halide segregation.

Original languageEnglish (US)
Title of host publication2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages189-191
Number of pages3
ISBN (Electronic)9781538685297
DOIs
StatePublished - Nov 26 2018
Event7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States
Duration: Jun 10 2018Jun 15 2018

Other

Other7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018
CountryUnited States
CityWaikoloa Village
Period6/10/186/15/18

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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    Bush, K. A., Palmstrom, A. F., Yu, Z., Frohna, K., Manzoor, S., Ali, A., Ali, W., Prasanna, R., Beal, R. E., Leijtens, T., Bent, S. F., Holman, Z., & McGehee, M. D. (2018). Optical and Compositional Engineering of Wide Band Gap Perovskites with Improved Stability to Photoinduced Phase Segregation for Efficient Monolithic Perovskite/Silicon Tandem Solar Cells. In 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC (pp. 189-191). [8547388] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2018.8547388