典型文献
Organic-semiconductor-assisted dielectric screening effect for stable and efficient perovskite solar cells
文献摘要：
Perovskite solar cells(pero-SCs)performance is essentially limited by severe non-radiative losses and ion migration.Although numerous strategies have been proposed,challenges remain in the basic under-standing of their origins.Here,we report a dielectric-screening-enhancement effect for perovskite defects by using organic semiconductors with finely tuned molecular structures from the atoms level.Our method produced various perovskite films with high dielectric constant values,reduced charge capture regions,suppressed ion migration,and it provides an efficient charge transport pathway for suppressing non-radiative recombination beyond the passivation effect.The resulting pero-SCs showed a promising power conversion efficiency(PCE)of 23.35％with a high open-circuit voltage(1.22 V);and the 1-cm2 pero-SCs maintained an excellent PCE(21.93％),showing feasibility for scalable fabrication.The robust operational and thermal stabilities revealed that this method paved a new way to understand the degra-dation mechanism of pero-SCs,promoting the efficiency,stability and scaled fabrication of the pero-SCs.
文献关键词：
中图分类号：
作者姓名：
Haiyang Chen;Qinrong Cheng;Heng Liu;Shuang Cheng;Shuhui Wang;Weijie Chen;Yunxiu Shen;Xinqi Li;Haidi Yang;Heyi Yang;Jiachen Xi;Ziyuan Chen;Xinhui Lu;Hongzhen Lin;Yaowen Li;Yongfang Li
作者机构：
Laboratory of Advanced Optoelectronic Materials,Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China;Department of Physics,Chinese University of Hong Kong,Hong Kong 999077,China;i-Lab,Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences,Suzhou 215123,China;State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials,Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application,Soochow University,Suzhou 215123,China;Beijing National Laboratory for Molecular Sciences,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China
文献出处：
引用格式：
[1]Haiyang Chen;Qinrong Cheng;Heng Liu;Shuang Cheng;Shuhui Wang;Weijie Chen;Yunxiu Shen;Xinqi Li;Haidi Yang;Heyi Yang;Jiachen Xi;Ziyuan Chen;Xinhui Lu;Hongzhen Lin;Yaowen Li;Yongfang Li-.Organic-semiconductor-assisted dielectric screening effect for stable and efficient perovskite solar cells)[J].科学通报（英文版）,2022(12):1243-1252
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Organic,assisted,dielectric,screening,effect,stable,efficient,perovskite,solar,cells,Perovskite,SCs,performance,essentially,limited,by,severe,radiative,losses,migration,Although,numerous,strategies,have,been,proposed,challenges,remain,basic,standing,their,origins,Here,report,enhancement,defects,using,organic,semiconductors,finely,tuned,molecular,structures,from,atoms,level,Our,method,produced,various,films,high,constant,values,reduced,charge,capture,regions,suppressed,provides,transport,pathway,suppressing,recombination,beyond,passivation,resulting,showed,promising,power,conversion,efficiency,PCE,open,circuit,voltage,maintained,excellent,showing,feasibility,scalable,fabrication,robust,operational,thermal,stabilities,revealed,that,this,paved,new,understand,degra,dation,mechanism,promoting,stability,scaled
AB值：
0.636462
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