Tailoring molecular termination for thermally stable perovskite solar cells

作     者：Xiao Zhang Sai Ma Jingbi You Yang Bai Qi Chen Xiao Zhang;Sai Ma;Jingbi You;Yang Bai;Qi Chen

作者机构：Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic SystemsSchool of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China Experimental Center of Advanced MaterialsSchool of Materials Science&EngineeringBeijing Institute of TechnologyBeijing 100081China Key Laboratory of Semiconductor Materials ScienceInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics EngineeringUniversity of Chinese Academy of SciencesBeijing 100081China 

出 版 物：《Journal of Semiconductors》 (半导体学报（英文版）)

年 卷 期：2021年第42卷第11期

页      面：39-47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 authors acknowledge funding support from National Natural Science Foundation of China(21975028,22011540377) National Science Foundation for Young Scientists No.21805010,Beijing Municipal Science and Technology Project No.Z181100005118002,and Beijing Municipal Natural Science Foundation(JQ19008) 

主　　题：perovskite solar cells terminal groups interfacial engineering thermal stability 

摘      要：Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells(PSCs).Here,we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal *** power conversion efficiency(PCE)has increased from 20.97%to 21.97%after introducing a 3-isocyanatopropyltrimethoxy silane(IPTMS)molecule with carbonyl group,while a trimethoxy[3-(phenylamino)propyl]silane(PAPMS)molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit *** improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier *** addition,the devices with carbonyl group modification exhibit outstanding thermal stability,which maintain 90%of its initial PCE after 1500 h *** work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.