典型文献
Ligand exchange engineering of FAPbI3 perovskite quantum dots for solar cells
文献摘要：
Formamidinium lead triiodide(FAPbI3)perovskite quantum dots(PQDs)show great advantages in photovoltaic applications due to their ideal bandgap energy,high stability and solution processability.The anti-solvent used for the post-treatment of FAPbI3 PQD solid films significantly affects the surface chemistry of the PQDs,and thus the vacancies caused by surface ligand removal inhibit the optoelectronic properties and stability of PQDs.Here,we study the effects of different anti-solvents with different polarities on FAPbI3 PQDs and select a series of organic molecules for surface passivation of PQDs.The results show that methyl acetate could effectively remove surface ligands from the PQD surface without destroying its crystal structure during the post-treatment.The benzamidine hydrochloride(PhFAC1)applied as short ligands of PQDs during the post-treatment could fill the A-site and X-site vacancies of PQDs and thus improve the electronic coupling of PQDs.Finally,the PhFACl-based PQD solar cell(PQDSC)achieves a power conversion efficiency of 6.4％,compared to that of 4.63％for the conventional PQDSC.This work provides a reference for insights into the surface passivation of PQDs and the improve-ment in device performance of PQDSCs.
文献关键词：
中图分类号：
作者姓名：
Wentao Fan;Qiyuan Gao;Xinyi Mei;Donglin Jia;Jingxuan Chen;Junming Qiu;Qisen Zhou;Xiaoliang Zhang
作者机构：
School of Materials Science and Engineering,Beihang University,Beijing 100191,China
文献出处：
引用格式：
[1]Wentao Fan;Qiyuan Gao;Xinyi Mei;Donglin Jia;Jingxuan Chen;Junming Qiu;Qisen Zhou;Xiaoliang Zhang-.Ligand exchange engineering of FAPbI3 perovskite quantum dots for solar cells)[J].光电子前沿（英文版）,2022(03):134-145
A类：
Formamidinium,benzamidine,PhFAC1,PhFACl,PQDSC,PQDSCs
B类：
Ligand,exchange,engineering,FAPbI3,perovskite,quantum,dots,solar,cells,lead,triiodide,PQDs,show,great,advantages,photovoltaic,applications,due,their,ideal,bandgap,energy,high,stability,solution,processability,anti,post,treatment,solid,films,significantly,affects,surface,chemistry,thus,vacancies,caused,by,removal,inhibit,optoelectronic,properties,Here,study,effects,different,solvents,polarities,select,series,organic,molecules,passivation,results,that,methyl,acetate,could,effectively,remove,ligands,from,without,destroying,its,crystal,structure,during,hydrochloride,applied,short,fill,site,improve,coupling,Finally,achieves,power,conversion,efficiency,compared,conventional,This,work,provides,reference,insights,into,device,performance
AB值：
0.496188
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