Novel photoelectric material of perovskite-like(CH_(3))_(3)SPbI_(3) nanorod arrays with high stability  

作　　者：Ruiyuan Hu Chuangye Ge Liang Chu Yifei Feng Shanshan Xiao Yuhui Ma Wei Liu Xing'ao Li Mohammad Khaja Nazeeruddin 

机构地区：[1]Institute of Advanced Materials&New Energy Technology Engineering Laboratory of Jiangsu Province&School of Materials Science and Engineering&School of Science,Nanjing University of Posts and Telecommunications,Nanjing 210023,China [2]Hoffmann Institute of Advanced Materials,Shenzhen Polytechnic,Shenzhen 518055,China [3]Group for Molecular Engineering of Functional Materials,EPFL Valais Wallis,CH-1951 Sion,Switzerland

出　　处：《Journal of Energy Chemistry》2021年第8期581-588,I0012,共9页能源化学（英文版）

基　　金：the financial support from the National Natural Science Foundation of China(U1732126,11804166,51602161,51372119);the Natural Science Foundation of Jiangsu Province(BK20150860);the Postgraduate Research&Practice Innovation Program of Jiangsu Province(KYCX180846,KYCX180869)。

摘　　要：Organometallic halide perovskite materials make great achievements in optoelectronic fields,especially in solar cells,in which the organic cations contain amine components.However,the amine with NàH bonds is easily hydrolyzed with moisture in the air,weakening the perovskite materials stability.It is desirable to develop other non-amine stable perovskite materials.In this work,sulfur-based perovskite-like(CH_(3))_(3)SPbI_(3) nanorod arrays were fabricated by a solution-processed method,which can be indexed hexagonal crystal structure in the space group P63 mc.The binding force is exceptionally strong between the non-amine(CH_(3))_(3) S+and[PbI_(6)]_(4)-octahedral,leading to high stability of(CH_(3))_(3)SPbI_(3).The(CH_(3))_(3)SPbI_(3) nanorod arrays can keep the morphology and crystal structure in an ambient atmosphere over 60 days.In addition,the(CH_(3))_(3)SPbI_(3) nanorod arrays can offer direct charge transfer channels,which show excellent optoelectronic properties.The(CH_(3))_(3)SPbI_(3) nanorod arrays-based solar cells with VOx hole transfer layers achieved a power conversion efficiency of 2.07%with negligible hysteresis.And the(CH_(3))_(3)SPbI_(3) nanorod arrays were also effectively applied in photodetectors with interdigitated gold electrodes.This work demonstrates that sulfur-based perovskite-like(CH_(3))_(3)SPbI_(3) is a novel promising stable compound with great potential for practical optoelectronic applications.

关 键 词：Perovskite solar cells High stability (CH_(3))_(3)SPbI_(3) nanorod arrays PHOTODETECTORS 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]