Stabilizing the MAPbI3 perovksite via the in-situ formed lead sulfide layer for efficient and robust solar cells

作     者：Lujia Xie Taiyang Zhang Yixin Zhao Lujia Xie;Taiyang Zhang;Yixin Zhao

作者机构：China-UK Low Carbon CollegeShanghai Jiao Tong University3 Yinlian Rd.Shanghai 201306China School of Environmental Science and EngineeringShanghai Jiao Tong University800 Dongchuan Rd.Shanghai 200240China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2020年第29卷第8期

页      面：62-65,I0003页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：the support of the NSFC (Grant 21777096 and 51861145101) Huoyingdong Grant (151046) the support of the Initiative Postdocs Supporting Program (Grant No.BX20180185) China Postdoctoral Science Foundation (Grant No.2018M640387) 

主　　题：Inorganic surface passivation MAPbI3 Ammonium sulfide Perovskite solar cells 

摘      要：Surface passivation via post-treatment with organic reagents is a popular strategy to improve the stability and efficiency of perovskite solar cell. However, organic passivation still suffers from the weak bonding between organic chemicals and perovskite layers. Here we reported a facile inorganic layer passivating method containing strong Pb–S bonding by using ammonium sulfide treatment. A compact PbS_x layer was in-situ formed on the top surface of the perovskite film, which could passivate and protect the perovskite surface to enhance the performance and stability. Our novel inorganic passivation layer strategy demonstrates great potential for the development of high efficiency hybrid and robust perovskite optoelectronics.