Browse by author
Lookup NU author(s): Dr Zhongjin Shen, Professor Marina FreitagORCiD
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© The Author(s), under exclusive licence to Springer Nature Limited 2024.In contrast to conventional (n–i–p) perovskite solar cells (PSCs), inverted (p–i–n) PSCs offer enhanced stability and integrability with tandem solar cell architectures, which have garnered increasing interest. However, p–i–n cells suffer from energy level misalignment with transport layers, imbalanced transport of photo-generated electrons and holes, and significant defects with the perovskite films. Here we introduce tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (3TPYMB), a nonionic n-type molecule that, through hydrogen bonding and Lewis acid–base reactions with perovskite surfaces or grain boundaries, enables in situ modulation of perovskite energetics, effectively mitigating the key challenges of p–i–n PSCs. The p–i–n PSCs incorporating 3TPYMB achieve a certified quasi-steady-state power conversion efficiency of 24.55 ± 0.33%, with a reverse scan efficiency of 25.58%. They also exhibit exceptional stability, with unencapsulated devices retaining 97.8% of their initial efficiency after 1,800 h of continuous operation at maximum power point under N2 atmosphere, 1 sun illumination and 60 °C conditions.
Author(s): Zhu H, Shao B, Shen Z, You S, Yin J, Wehbe N, Wang L, Song X, Abulikemu M, Basaheeh A, Jamal A, Gereige I, Freitag M, Mohammed OF, Zhu K, Bakr OM
Publication type: Article
Publication status: Published
Journal: Nature Photonics
Year: 2024
Pages: epub ahead of print
Online publication date: 02/10/2024
Acceptance date: 02/09/2024
Date deposited: 12/11/2024
ISSN (print): 1749-4885
ISSN (electronic): 1749-4893
Publisher: Nature Research
URL: https://doi.org/10.1038/s41566-024-01542-8
DOI: 10.1038/s41566-024-01542-8
ePrints DOI: 10.57711/3nnt-kh23
Data Access Statement: All data are available in the main text or the supplementary materials. Additional information can be obtained from corresponding authors upon a reasonable request.
Altmetrics provided by Altmetric
