High Efficiency Pb-In Binary Metal Perovskite Solar Cells
作者单位：Jiangsu Key Laboratory for Carbon-Based Functional Materials & DevicesInstitute of Functional Nano & Soft Materials (FUNSOM)Soochow University Shanghai Synchrotron Radiation FacilityShanghai Institute of Applied PhysicsChinese Academy of Sciences
会议名称：《第三届新型太阳能电池学术研讨会》
会议日期：2016年
学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
关 键 词：Multiple ordered crystal orientations Pb and In chlorides Perovskite solar cells
摘 要：Organometal halide perovskite solar cells bring a very competitive and fascinating prospect on solution-processable photovoltaic devices by their unimaginable efficiency ***,the fain utilization of lead in the materials will cause inevitable toxicology issue to the *** new non-toxic materials to substitute lead is an important and urgent *** we propose and investigate an alternative organic-inorganic perovskite,CHNHPbInaI Cla,where part of lead(II) is substituted by Indium(III).Grazing incidence X-ray diffraction reveals that the perovskite films exhibit multiple ordered crystal orientations,which lead to substantially improved power conversion efficiency of 17.55% in a planar heterojunction device compared with 12.61% in a pure-lead based control *** work demonstrates the possibility to substitute lead(II) in organometal halide perovskites by Indium(III) besides Tin(II).The finding promotes the lead substitution to explore new alloy perovskite systems and paves one way to tune the crystallization kinetics of organometal halide perovskites for enhanced photovoltaic devices.