典型文献
Defect passivation with potassium trifluoroborate for efficient spray-coated perovskite solar cells in air
文献摘要：
Defects as non-radiative recombination centers hinder the further efficiency improvements of perovskite solar cells(PSCs).Additive engineering has been demonstrated to be an effective method for defect passivation in perovskite films.Here,we employed(4-methoxyphenyl)potassium trifluoroborate(C7H7BF3KO)with BF3-and K+functional groups to passivate spray-coated(FAPbl3)x(MAPbBr3)1-x perovskite and eliminate hysteresis.It is shown that the F of BF3-can form hydrogen bonds with the H atom in the amino group of MA+/FA+ions of perovskite,thus reducing the generation of MA+/FA+vacancies and improv-ing device efficiency.Meanwhile,K+and reduced MA+/FA+vacancies can inhibit ion migration,thereby eliminating hysteresis.With the aid of C7H7BF3KO,we obtained hysteresis-free PSCs with the maximum efficiency of 19.5％by spray-coating in air.Our work demonstrates that additive engineering is promising to improve the performance of spray-coated PSCs.
文献关键词：
中图分类号：
作者姓名：
Chen Gao;Hui Wang;Pang Wang;Jinlong Cai;Yuandong Sun;Cong Yu;Teng Li;Xiaoshuai Zhang;Dan Liu;Tao Wang
作者机构：
School of Materials Science and Engineering,Wuhan University of Technology,Wuhan 430070,China
文献出处：
引用格式：
[1]Chen Gao;Hui Wang;Pang Wang;Jinlong Cai;Yuandong Sun;Cong Yu;Teng Li;Xiaoshuai Zhang;Dan Liu;Tao Wang-.Defect passivation with potassium trifluoroborate for efficient spray-coated perovskite solar cells in air)[J].半导体学报（英文版）,2022(09):27-33
A类：
trifluoroborate,C7H7BF3KO,K+functional,FAPbl3,FA+ions,FA+vacancies
B类：
passivation,potassium,efficient,spray,coated,perovskite,solar,cells,air,Defects,radiative,recombination,centers,hinder,further,efficiency,improvements,PSCs,Additive,engineering,has,been,demonstrated,effective,method,defect,films,Here,we,employed,methoxyphenyl,groups,passivate,MAPbBr3,eliminate,hysteresis,It,shown,that,hydrogen,bonds,atom,amino,MA+,thus,reducing,generation,device,Meanwhile,K+and,reduced,inhibit,migration,thereby,eliminating,With,aid,obtained,free,maximum,coating,Our,work,demonstrates,additive,promising,performance
AB值：
0.468601
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