Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys
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...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Online Access: | https://hdl.handle.net/10356/151643 |
| _version_ | 1824454465760002048 |
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| author | 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. |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences 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. |
| author_sort | Frolova, Lyubov A. |
| collection | NTU |
| description | 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. |
| first_indexed | 2025-02-19T03:22:45Z |
| format | Journal Article |
| id | ntu-10356/151643 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:22:45Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1516432021-07-22T10:17:42Z Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys 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. School of Physical and Mathematical Sciences Science::Physics Highly Efficient Thin-films 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. Ministry of Education (MOE) This work was supported by Russian Science Foundation (project No. 18-13-00353). We thank Dr Tsarev for support with some of the XRD measurements. E. E. M. C. acknowledges support from the Singapore Ministry of Education AcRF Tier 2 (MOE2015-T2-2-065 and MOE2016-T2-1-054). 2021-07-22T10:17:42Z 2021-07-22T10:17:42Z 2019 Journal Article 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. https://dx.doi.org/10.1039/c8tc04488k 2050-7526 https://hdl.handle.net/10356/151643 10.1039/c8tc04488k 2-s2.0-85065652481 18 7 5314 5323 en MOE2015-T2-2-065 MOE2016-T2-1-054 Journal of Materials Chemistry C © 2019 The Royal Society of Chemistry. All rights reserved. |
| spellingShingle | Science::Physics Highly Efficient Thin-films 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. Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title | Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title_full | Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title_fullStr | Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title_full_unstemmed | Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title_short | Efficient and stable all-inorganic perovskite solar cells based on nonstoichiometric CsₓPbI₂Brₓ (x > 1) alloys |
| title_sort | efficient and stable all inorganic perovskite solar cells based on nonstoichiometric csₓpbi₂brₓ x 1 alloys |
| topic | Science::Physics Highly Efficient Thin-films |
| url | https://hdl.handle.net/10356/151643 |
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