Sulfonyldibenzene-based hole-transporting materials for efficient n-i-p perovskite solar cells

作     者：Tian Qin Fei Wu Yingxiao Mu Yubo Long Linna Zhu Juan Zhao Zhenguo Chi Tian Qin;Fei Wu;Yingxiao Mu;Yubo Long;Linna Zhu;Juan Zhao;Zhenguo Chi

作者机构：Chongqing Key Laboratory for Advanced Materials and Technologies of Clean EnergySchool of Materials&EnergySouthwest UniversityChongqing 400715China PCFM LabGDHPPC LabGuangdong Engineering Technology Research Center for High-performance Organic and Polymer Photoelectric Functional FilmsState Key Laboratory of OEMTSchool of ChemistrySun Yat-sen UniversityGuangzhou 510275China School of Materials Science and EngineeringSun Yat-sen UniversityGuangzhou 510275China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2021年第64卷第1期

页      面：127-133页

核心收录：

学科分类：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）] 

基　　金：the National Natural Science Foundation of China(51733010,21672267,51973239 and52073316) the Science and Technology Planning Project of Guangdong(2015B090913003) the Fundamental Research Funds for the Central Universities(19lgpy118,XDJK2019B065 and XDJK2020B002) 

主　　题：sulfonyldibenzene hole-transporting material perovskite solar cell 

摘      要：Organic hole-transporting materials(HTMs)are an essential component in conventional perovskite solar cells(PSCs).In this work,two sulfonyldibenzene-based molecules,named CS-04 and CS-05,are synthesized and employed as HTMs in n-i-p *** comparison with CS-04,the carbazole-substituted methoxytriphenylamine(Cz MOTPA)group in CS-05 exhibits an increased degree of molecular distortion,thus endowing CS-05 with excellent solvent solubility and film-formation ***,CS-05 shows a high hole mobility,superior hole extraction and hole transporting *** a result,CS-05 yields impressive device performances with a high power conversion efficiency(PCE)of 20.15%,while that of CS-04 based device is 19.50%,which is comparable to that of the Spiro-OMe TAD based control device(19.59%).This finding illustrates the potential of sulfonyldibenzene-based molecules for the applications in PSCs,and also provides a novel avenue to improve the performances and stability of PSCs by tailoring the sulfonyldibenzene-based molecules.