Oriented inorganic perovskite absorbers processed by colloidal-phase fumigation

作     者：Ziren Zhou Hong Wei Qiao Xiaolong Li Chen Lin Jin Xie Yiheng Shi Zeqing Lin Bing Ge Mengjiong Chen Yi Zheng Jin Shuang Yang Yu Hou Hua Gui Yang 周资人;乔红伟;李晓龙;林晨;谢瑾;施以恒;林泽青;葛兵;陈锰炯;金一正;杨双;侯宇;杨化桂

作者机构：Key Laboratory for Ultrafine Materials of Ministry of EducationShanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237China Shanghai Synchrotron Radiation FacilityShanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Department of ChemistryZhejiang UniversityHangzhou 310058China 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2021年第64卷第10期

页      面：2421-2429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：financially supported by the National Ten Thousand Talent Program for Young Top-notch Talent the National Natural Science Fund for Excellent Young Scholars (52022030) the National Natural Science Fund for Distinguished Young Scholars (51725201) the National Natural Science Foundation of China (51972111 and 51902185) the International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (51920105003) the Innovation Program of Shanghai Municipal Education Commission (E00014) the Fundamental Research Funds for the Central Universities (JKD012016025 and JKD012016022) Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400) 

主　　题：cesium lead halide perovskite fumigation orientation photophysical properties solar cells 

摘      要：Inorganic perovskite absorbers are promising candidates for next-generation photovoltaics due to their good thermal and light ***-mixed Cs Pb I_(x)Br_(3-x)reach a compromise between its structural tolerance and absorption edge,yet the power conversion efficiencies(PCEs)of the asfabricated cells can be considerably limited by the nonideal quality of solution-processed *** we demonstrated a fumigation strategy on colloidal perovskite films using dualO-donor ethyl acetate(EA).By in-situ monitoring this stage with grazing-incidence wide-angle X-ray scattering technology,we reveal that EA fumigation would impose ripening barrier on colloidal inorganic perovskites and hence slow down the nucleation rate,leading to an intermediate state for processing high-crystallinity and oriented perovskite films with improved photophysical *** optimized PCE of 16.6%was finally yielded upon wide-bandgap(1.9 eV)perovskite absorber.