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Ionic Liquid Assisted Imprint for Efficient and Stable Quasi-2D Perovskite Solar Cells with Controlled Phase Distribution

作     者:Haibin Peng Dengxue Li Zongcai Li Zhi Xing Xiaotian Hu Ting Hu Yiwang Chen Haibin Peng;Dengxue Li;Zongcai Li;Zhi Xing;Xiaotian Hu;Ting Hu;Yiwang Chen

作者机构:Department of Polymer Materials and EngineeringSchool of Physics and Materials ScienceNanchang University999 Xuefu AvenueNanchang 330031People’s Republic of China College of Chemistry and Chemical EngineeringInstitute of Polymers and Energy Chemistry(IPEC)Nanchang University999 Xuefu AvenueNanchang 330031People’s Republic of China National Engineering Research Center for Carbohydrate Synthesis/KeyLab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of EducationJiangxi Normal University99 Ziyang AvenueNanchang 330022People’s Republic of China Peking University Yangtze Delta Institute of OptoelectronicsNantong 226010People’s Republic of China 

出 版 物:《Nano-Micro Letters》 (纳微快报(英文版))

年 卷 期:2023年第15卷第7期

页      面:1-15页

核心收录:

学科分类:07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程(可授工学、理学学位)] 0702[理学-物理学] 

基  金:support from the National Natural Science Foundation of China(NSFC)(52163019,22005131,52173169 and U20A20128) support from the Natural Science Foundation of Jiangxi Province(20224ACB214006) 

主  题:Imprint Two-dimensional perovskite Phase distribution Charge transfer Stability 

摘      要:Although two-dimensional perovskite devices are highly stable,they also lead to a number of *** instance,the introduction of large organic amines makes crystallization process complicated,causing problems such as generally small grain size and blocked charge *** this work,imprint assisted with methylamine acetate were used to improve the morphology of the film,optimize the internal phase distribution,and enhance the charge transfer of the perovskite ***,imprint promoted the dispersion of spacer cations in the recrystallization process with the assistance of methylamine acetate,thus inhibited the formation of low-n phase induced by the aggregation of spacer cations and facilitated the formation of 3D-like *** this case,the corresponding quasi-2D perovskite solar cells delivered improved efficiency and exhibited superior *** work provides an effective strategy to obtain uniform phase distribution for quasi-2D perovskite.

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