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王照奎教授课题组及其合作者在Adv. Mater.上发表论文
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发布时间:2022-06-22 点击:1003
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题目: | Full-Dimensional Grain Boundary Stress Release for Flexible Perovskite Indoor Photovoltaics | 作者: | Chun-Hao Chen1,#, Zhen-Huang Su2,#, Yan-Hui Lou3, Yan-Jun Yu1, Kai-Li Wang1, Gen-Lin Liu1, Yi-Ran Shi1, Jing Chen1, Jun-Jie Cao1, Liang Zhang1, Xing-Yu Gao2, and Zhao-Kui Wang1,* | 单位: | 1Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, China. 2Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China. 3College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou 215006, China. | 摘要: | Perovskite photovoltaics are strong potential candidates to drive low-power off-grid electronics for indoor applications. Compared with rigid devices, flexible perovskite devices can provide a more suitable surface for indoor small electronic devices, enabling them have a broader indoor application prospect. However, the mechanical stability of flexible perovskite photovoltaics is an urgent issue solved. Herein, a kind of 3D crosslinking agent named borax is selected to carry out grain boundary penetration treatment on perovskite film to realize full-dimensional stress release. This strategy improves the mechanical and phase stabilities of perovskite films subjected to external forces or large temperature changes. The fabricated perovskite photovoltaics deliver a champion power conversion efficiency (PCE) of 21.63% under AM 1.5G illumination, which is the highest one to date. The merit of low trap states under weak light makes the devices present a superior indoor PCE of 31.85% under 1062 lux (LED, 2956 K), which is currently the best flexible perovskite indoor photovoltaic device. This work provides a full-dimensional grain boundary stress release strategy for highly stable flexible perovskite indoor photovoltaics. | 影响因子: | 30.849 | 分区情况: | 一区 | 链接: | https://onlinelibrary.wiley.com/doi/full/10.1002/adma.202200320 |
责任编辑:郭佳
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