期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 606, 期 -, 页码 800-807出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2021.07.122
关键词
CsPbI2Br; All inorganic perovskite solar cells; Interface engineering; Double perovskite Cs2PtI6; Carbon electrode
资金
- China Scholarship Council (CSC) [201908050025]
- Japan Society for the Promotion of Science [20 K15381]
- National Natural Science Foundation of China [51972293, 51772039]
- (KAKENHI) program [19H02818]
The study presents a strategy to enhance the performance of all-inorganic CsPbI2Br solar cells by modifying the surface, resulting in improved power conversion efficiency and enhanced moisture resistance.
All-inorganic perovskite materials (Typically: CsPbI2Br) have attracted enormous attention due to their illustrious thermal stability and appropriate bandgap, and their use in perovskite solar cells (PSCs) has been extensively investigated. However, the inevitable defects of the perovskite layer, energy level mismatch between perovskite and carbon electrodes, and the phase instability of CsPbI2Br limit the power conversion efficiency (PCE) and stability of carbon-based CsPbI2Br PSCs. Herein, we demonstrate a simple and effective strategy for regulating energy level, inhibiting carrier recombination, and delaying the degradation of perovskite by modifying the surface of CsPbI2Br with a new type of 2D perovskite Cs2PtI6. The carbon-based CsPbI2Br PSCs achieve a higher PCE (13.69 %) than the control device (11.10 %). The excellent matching of the energy level and suppression of charge carrier recombination should be responsible for the improvement in efficiency. Furthermore, the excellent hydrophobic performance of Cs2PtI6 enhances the moisture resistance of the device. This study provides a potential strategy for improving the performance and stability of all-inorganic CsPbI2Br PSCs. (C) 2021 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据