An: In situ cross-linked 1D/3D perovskite heterostructure improves the stability of hybrid perovskite solar cells for over 3000 h operation

Ning Yang, Cheng Zhu, Yihua Chen, Huachao Zai, Chenyue Wang, Xi Wang, Hao Wang, Sai Ma, Ziyan Gao, Xueyun Wang, Jiawang Hong, Yang Bai, Huanping Zhou, Bin Bin Cui, Qi Chen

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164 引用 (Scopus)

摘要

Long-term stability is an essential requirement for perovskite solar cells (PSCs) to be commercially viable. Heterojunctions built by low-dimensional and three-dimensional perovskites (1D/3D or 2D/3D) help to improve the stability of PSCs. However, the insulated organic cations of low-dimensional perovskite impede the transport of carriers, decreasing the power conversion efficiency (PCE) of PSCs. Herein, we introduce an in situ cross-linking polymerizable propargylammonium (PA+) to the 3D perovskite film at surfaces and grain boundaries to form a 1D/3D perovskite heterostructure. This passivation strategy not only significantly improves the interfacial carrier transport but also releases residual tensile strain in perovskite films. As a result, the corresponding devices achieve a champion PCE of 21.19%, while maintaining 93% of their initial efficiency after 3055 h of continuous illumination under maximum power point (MPP) operating conditions.

源语言英语
页(从-至)4344-4352
页数9
期刊Energy and Environmental Science
13
11
DOI
出版状态已出版 - 11月 2020

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Yang, N., Zhu, C., Chen, Y., Zai, H., Wang, C., Wang, X., Wang, H., Ma, S., Gao, Z., Wang, X., Hong, J., Bai, Y., Zhou, H., Cui, B. B., & Chen, Q. (2020). An: In situ cross-linked 1D/3D perovskite heterostructure improves the stability of hybrid perovskite solar cells for over 3000 h operation. Energy and Environmental Science, 13(11), 4344-4352. https://doi.org/10.1039/d0ee01736a