Ultrastable and efficient slight-interlayer-displacement 2D Dion-Jacobson perovskite solar cells
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Liu, Z
Zhang, L
Wang, H
Jiang, C
Wu, X
Li, C
Yue, S
Yang, R
Zhang, H
Zhang, J
Liu, X
Zhang, Y
Zhou, H
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Abstract
Stability has been a long-standing concern for solution-processed perovskite photovoltaics and their practical applications. However, stable perovskite materials for photovoltaic remain insufficient to date. Here we demonstrate a series of ultrastable Dion−Jacobson (DJ) perovskites (1,4-cyclohexanedimethanammonium)(methylammonium)n−1PbnI3n+1 (n ≥ 1) for photovoltaic applications. The scalable technology by blade-coated solar cells for the designed DJ perovskites (nominal n = 5) achieves a maximum stabilized power conversion efficiency (PCE) of 19.11% under an environmental atmosphere. Un-encapsulated cells by blade-coated technology retain 92% of their initial efficiencies for over 4000 hours under ~90% relative humidity (RH) aging conditions. More importantly, these cells also exhibit remarkable thermal (85 °C) and operational stability, which shows negligible efficiency loss after exceeding 5000-hour heat treatment or after operation at maximum power point (MPP) exceeding 6000 hours at 45 °C under a 100 mW cm−2 continuous light illumination.
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Nature Communications
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15
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© The Author(s) 2024. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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Zhang, W; Liu, Z; Zhang, L; Wang, H; Jiang, C; Wu, X; Li, C; Yue, S; Yang, R; Zhang, H; Zhang, J; Liu, X; Zhang, Y; Zhou, H, Ultrastable and efficient slight-interlayer-displacement 2D Dion-Jacobson perovskite solar cells, Nature Communications, 2024, 15, pp. 5709