Reinforced SnO_(2) tensile-strength and“buffer-spring”interfaces for efficient inorganic perovskite solar cells  

作　　者：Yuanyuan Zhao Lei Gao Qiurui Wang Qiang Zhang Xiya Yang Jingwei Zhu Hao Huang Jialong Duan Qunwei Tang 

机构地区：[1]College of Mechanical and Electronic Engineering,Shandong University of Science and Technology,Qingdao,China [2]Institute of New Energy Technology,College of Information Science and Technology,Jinan University,Guangzhou,China [3]College of Materials Science and Engineering,Sichuan University,Chengdu,China [4]Guangxi Key Laboratory of Processing for Non-Ferrous Metals and Featured Materials,School of Resources,Environment and Materials,Guangxi University,Nanning,China [5]Institute of Carbon Neutrality,College of Chemical and Biological Engineering,Shandong University of Science and Technology,Qingdao,China

出　　处：《Carbon Energy》2024年第6期282-291,共10页碳能源（英文）

基　　金：Qingdao Postdoctoral Funding Program,Grant/Award Number:QDBSH20220201002;National Key Research and Development Program of China,Grant/Award Number:2021YFE0111000;Project of Shandong Province Higher Educational Young Innovative Team,Grant/Award Number:2022KJ218;National Natural Science Foundation of China,Grant/Award Numbers:62104136,22179051,22109053。

摘　　要：Suppressing nonradiative recombination and releasing residual strain areprerequisites to improving the efficiency and stability of perovskite solar cells(PSCs).Here,long-chain polyacrylic acid(PAA)is used to reinforce SnO_(2)film and passivate SnO_(2)defects,forming a structure similar to“reinforcedconcrete”with high tensile strength and fewer microcracks.Simultaneously,PAA is also introduced to the SnO_(2)/perovskite interface as a“buffer spring”torelease residual strain,which also acts as a“dual-side passivation interlayer”to passivate the oxygen vacancies of SnO_(2)and Pb dangling bonds in halideperovskites.As a result,the best inorganic CsPbBr_(3)PSC achieves a championpower conversion efficiency of 10.83%with an ultrahigh open-circuit voltageof 1.674 V.The unencapsulated PSC shows excellent stability under 80%relative humidity and 80℃over 120 days.

关 键 词：charge recombination defect passivation inorganic perovskite solar cells interfacial modification strain relaxation 

分 类 号：TM914.4[电气工程—电力电子与电力传动]