典型文献
Defect suppression and energy level alignment in formamidinium-based perovskite solar cells
文献摘要：
The vast majority of high-performance perovskite solar cells(PSCs)are based on a formamidinium lead iodide(FAPbI3)-dominant composition.Nevertheless,the FA-based perovskite films suffer from undesir-able phase transition and defects-induced non-ideal interfacial recombination,which significantly induces energy loss and hinders the improvement of device performance.Herein,we employed 4-fluorophenylmethylammonium iodide(F-PMAI)to modulate surface structure and energy level align-ment of the FA-based perovskite films.The superior optoelectronic films were obtained with reduced trap density,pure α-phase FAPbl3 and favorable energy band bending.The lifetime of photogenerated charge carriers increased from 489.3 ns to 1010.6 ns,and a more"p-type"perovskite film was obtained by the post-treatment with F-PMAI.Following this strategy,we demonstrated an improved power conversion efficiency of 22.59％for the FA-based PSCs with an open-circuit voltage loss of 399 mV.
文献关键词：
中图分类号：
作者姓名：
Yi Wang;Xiaobing Wang;Chenhui Wang;Renying Cheng;Lanxin Zhao;Xu Wang;Xuewen Zhang;Jingzhi Shang;Huang Zhang;Lichen Zhao;Yongguang Tu;Wei Huang
作者机构：
Frontiers Science Center for Flexible Electronics,Xi'an Institute of Flexible Electronics(IFE)&Xi'an Institute of Biomedical Materials and Engineering,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China;Engineering Research Centre of Environment-Friendly Functional Materials,Ministry of Education,Fujian Engineering Research Centre of Green Functional Materials,Huaqiao University,Xiamen 361021,Fujian,China;Honors College,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China;State Key Laboratory for Artificial Microstructure and Mesoscopic Physics,School of Physics,Frontiers Science Center for Nano-optoelectronics&Collaborative Innovation Center of Quantum Matter,Peking University,Beijing 100871,China;Key Laboratory of Flexible Electronics(KLoFE)&Institution of Advanced Materials(IAM),Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM),Nanjing Tech University,Nanjing 211816,Jiangsu,China;Key Laboratory for Organic Electronics&Information Displays(KLOEID)&Institute of Advanced Materials(IAM),Nanjing University of Posts and Telecommunications,Nanjing 210023,Jiangsu,China
文献出处：
引用格式：
[1]Yi Wang;Xiaobing Wang;Chenhui Wang;Renying Cheng;Lanxin Zhao;Xu Wang;Xuewen Zhang;Jingzhi Shang;Huang Zhang;Lichen Zhao;Yongguang Tu;Wei Huang-.Defect suppression and energy level alignment in formamidinium-based perovskite solar cells)[J].能源化学,2022(04):65-72
A类：
undesir,fluorophenylmethylammonium,PMAI,FAPbl3
B类：
Defect,suppression,energy,level,alignment,formamidinium,perovskite,solar,cells,vast,majority,high,performance,PSCs,are,lead,iodide,FAPbI3,dominant,composition,Nevertheless,films,suffer,from,phase,transition,defects,induced,ideal,interfacial,recombination,which,significantly,induces,loss,hinders,improvement,device,Herein,employed,modulate,surface,structure,superior,optoelectronic,were,obtained,reduced,trap,density,pure,favorable,band,bending,lifetime,photogenerated,charge,carriers,increased,more,type,was,by,post,treatment,Following,this,strategy,demonstrated,improved,power,conversion,efficiency,open,circuit,voltage,mV
AB值：
0.563795
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