典型文献
Chelation of lithium ion with crown ether for eliminating adverse effects caused by Li-TFSI/tBP doping system in Spiro-OMeTAD
文献摘要：
Lithium bis(trifluoromethanesulfonyl)imide(Li-TFSI)/4-tert-butylpyridine(tBP)is a classic doping sys-tem for the hole transport material Spiro-OMeTAD in typical n-i-p structure perovskite solar cells(PSCs),but this system will cause many problems such as high hygroscopicity,Li+migration,pinholes and so on,which hinder PSC from maintaining high efficiency and stability for long-term.In this work,an effective strategy is demonstrated to improve the performance and stability of PSC by replacing tBP with 12-crown-4.The chelation of 12-crown-4 with Li+not only improves the doping effect of Li-TFSI,but also perfectly solves the problems caused by the Li-TFSI/tBP system.The PSC based on this strategy achieved a champion power conversion efficiency(PCE)over 21％,which is significantly better than the pristine device(19.37％).More importantly,the without encapsulated device based on Li-TFSI/12-crown-4 still maintains 87％of the initial PCE even after 60 days exposure in air,while the pristine device only maintains 22％of the initial PCE under the same aging conditions.This strategy paves a novel way for con-structing efficient and stable PSCs.
文献关键词：
中图分类号：
作者姓名：
Zhongquan Wan;Hui Lu;Jinyu Yang;Yunpeng Zhang;Fangyan Lin;Jianxing Xia;Xiaojun Yao;Junsheng Luo;Chunyang Jia
作者机构：
State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,Sichuan,China;Shenzhen Institute for Advanced Study,University of Electronic Science and Technology of China,Shenzhen 518110,Guangdong,China;State Key Laboratory of Applied Organic Chemistry,Lanzhou University,Lanzhou 730000,Gansu,China
文献出处：
引用格式：
[1]Zhongquan Wan;Hui Lu;Jinyu Yang;Yunpeng Zhang;Fangyan Lin;Jianxing Xia;Xiaojun Yao;Junsheng Luo;Chunyang Jia-.Chelation of lithium ion with crown ether for eliminating adverse effects caused by Li-TFSI/tBP doping system in Spiro-OMeTAD)[J].能源化学,2022(11):489-496
A类：
tBP,butylpyridine,Li+migration,Li+not
B类：
Chelation,lithium,crown,ether,eliminating,adverse,effects,caused,by,TFSI,doping,system,Spiro,OMeTAD,Lithium,bis,trifluoromethanesulfonyl,imide,tert,classic,transport,material,typical,structure,perovskite,solar,cells,PSCs,this,will,many,problems,such,high,hygroscopicity,pinholes,which,hinder,from,maintaining,efficiency,stability,long,term,In,work,effective,strategy,demonstrated,performance,replacing,chelation,only,improves,also,perfectly,solves,achieved,champion,power,conversion,PCE,over,significantly,better,pristine,device,More,importantly,without,encapsulated,still,maintains,initial,even,after,days,exposure,air,while,under,same,aging,conditions,This,paves,novel,way,structing,efficient,stable
AB值：
0.511852
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