C70苄基衍生物的合成及其在钙钛矿太阳能电池中的应用  

Synthesis of C70 benzyl derivative and its application in perovskite solar cells

作　　者：姚春瑞 李姝慧 邢舟 邓林龙[2] 张前炎[1] 谢素原[1] 黄荣彬[1] 郑兰荪[1] YAO Chunrui;LI Shuhui;XING Zhou;DENG Linlong;ZHANG Qianyan;XIE Suyuan;HUANG Rongbin;ZHENG Lansun(State Key Laboratory of Physical Chemistry of Solid Surfaces,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China;Pen-Tung Sah Institute of Micro-Nano Science and Technology,Xiamen University,Xiamen 361005,China)

机构地区：[1]厦门大学化学化工学院,固体表面物理化学国家重点实验室,福建厦门361005 [2]厦门大学萨本栋微米纳米科学技术研究院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2020年第1期19-25,共7页Journal of Xiamen University：Natural Science

基　　金：国家重点基础研究发展计划(973计划)(2014CB845601,2015CB932301);国家自然科学基金(21771152,21721001,21390390,51572231,21701134);福建省科技厅高校产学合作项目(2016H6023);中央高校基本科研业务费专项(20720170028,20720160084)

摘　　要：富勒烯及其衍生物具有高电子传输效率,是倒置平面异质结钙钛矿太阳能电池器件中优异的电子传输材料(ETMs).其中,富勒烯C 70通常存在众多的异构体产物,通过常规手段难以实现有效分离,因此关于结构明确的富勒烯衍生物对钙钛矿太阳能电池的影响,目前尚缺乏系统的研究和理解.该文成功合成并分离了一种结构明确的C 70衍生物2,5-(PhCH 2)2 C 70,并将其作为ETMs构建倒置平面异质结钙钛矿太阳能电池器件,最终实现了12.77%的光电转换效率,通过对富勒烯衍生物中分子晶体结构堆积的研究,分析了富勒烯衍生物结构对钙钛矿太阳能电池器件性能的影响.Fullerene and its derivatives are the most efficient electron transport materials(ETMs)in the inverted planar heterojunction perovskite solar cells(PSCs)due to their superior electron transport ability.However,due to enormous obstacles in the separation of C 70 derivative isomers,the influence of fullerene derivatives with different structures on the PSCs has not been systematically explored heretofore.Herein,based on the successful preparation of a C 70 derivative 2,5-(PhCH 2)2 C 70,and subsequent incorporation into the inverted planar heterojunction PSCs as the ETMs,a champion photoelectric conversion efficiency of 12.77%was obtained.Furthermore,the influence of the fullerene derivative structure was figured out through crystallographic understanding of molecular packing.

关 键 词：钙钛矿太阳能电池 电子传输材料 2 5-(PhCH2)2C70 分子堆积 光电转换效率 

分 类 号：O613.42[理学—无机化学] O613.71[理学—化学]