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Title: Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys
Authors: Frolova, Lyubov A.
Chang, Qing
Luchkin, Sergey Yu.
Zhao, Daming
Akbulatov, Azat F.
Dremova, Nadezhda N.
Ivanov, Andrey V.
Chia, Elbert E. M.
Stevenson, Keith J.
Troshin, Pavel A.
Keywords: Science::Physics
Issue Date: 2019
Source: Frolova, L. A., Chang, Q., Luchkin, S. Y., Zhao, D., Akbulatov, A. F., Dremova, N. N., Ivanov, A. V., Chia, E. E. M., Stevenson, K. J. & Troshin, P. A. (2019). Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys. Journal of Materials Chemistry C, 7(18), 5314-5323.
Project: MOE2015-T2-2-065
Journal: Journal of Materials Chemistry C
Abstract: Here we report a systematic study of all-inorganic perovskite-inspired systems based on CsₓPbI₂Brₓ alloys with x ranging from 0.95 to 4. The identified optimal non-stoichiometric composition Cs₁.₂PbI₂Br₁.₂ delivered the best optoelectronic, structural and photovoltaic characteristics in combination with the improved stability. The elucidated remarkable effect of the Cs₄PbI₂Br₄ impurity phase, serving as a reservoir of CsBr, on the photothermal stability and photovoltaic performance of CsPbI₂Br perovskite films offers a new paradigm in the development of more efficient and stable all-inorganic perovskite solar cells.
ISSN: 2050-7526
DOI: 10.1039/c8tc04488k
Rights: © 2019 The Royal Society of Chemistry. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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