Textured Perovskite/Silicon Tandem Solar Cells Achieving Over 30% Efficiency Promoted by 4-Fluorobenzylamine Hydroiodide

作     者：Jingjing Liu Biao Shi Qiaojing Xu Yucheng Li Yuxiang Li Pengfei Liu Zetong SunLi Xuejiao Wang Cong Sun Wei Han Diannan Li Sanlong Wang Dekun Zhang Guangwu Li Xiaona Du Ying Zhao Xiaodan Zhang Jingjing Liu;Biao Shi;Qiaojing Xu;Yucheng Li;Yuxiang Li;Pengfei Liu;Zetong SunLi;Xuejiao Wang;Cong Sun;Wei Han;Diannan Li;Sanlong Wang;Dekun Zhang;Guangwu Li;Xiaona Du;Ying Zhao;Xiaodan Zhang

作者机构：Renewable Energy Conversion and Storage CenterSolar Energy Conversion CenterInstitute of Photoelectronic Thin Film Devices and TechnologyNankai UniversityTianjin 300350People’s Republic of China Key Laboratory of Photoelectronic Thin Film Devices and Technology of TianjinTianjin 300350People’s Republic of China Haihe Laboratory of Sustainable Chemical TransformationsTianjin 300192People’s Republic of China Engineering Research Center of Thin Film Photoelectronic Technology of Ministry of EducationTianjin 300350People’s Republic of China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin 300072People’s Republic of China Center of Single‑Molecule SciencesInstitute of Modern OpticsTianjin Key Laboratory of Micro‑Scale Optical Information Science and TechnologyCollege of Electronic Information and Optical EngineeringNankai University38 Tongyan RoadJinnan DistrictTianjin 300350People’s Republic of China Shenzhen Research Institute of Nankai University16Th FloorYantian Science and Technology BuildingHaishan StreetYantian DistrictShenzhen 518083People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2024年第16卷第9期

页      面：557-570页

核心收录：

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）] 

基　　金：the financial support of National Key Research and Development Program of China(Grant No.2023YFB4202503) the Joint Funds of the National Natural Science Foundation of China(Grant No.U21A2072) Natural Science Foundation of China(Grant No.62274099) Natural Science Foundation of Tianjin(No.20JCQNJC02070) China Postdoctoral Science Foundation(No.2020T130317) the Overseas Expertise Introduction Project for Discipline Innovation of Higher Education of China(Grant No.B16027) Tianjin Science and Technology Project(Grant No.18ZXJMTG00220) Key R&D Program of Hebei Province(No.19214301D) provided by the Haihe Laboratory of Sustainable Chemical Transformations the Fundamental Research Funds for the Central Universities,Nankai University 

主　　题：Perovskite crystallization (111)preferred orientation Defect passivation Perovskite/silicon tandem solar cells 

摘      要：Monolithic textured perovskite/silicon tandem solar cells(TSCs)are expected to achieve maximum light capture at the lowest cost,potentially exhibiting the best power conversion ***,it is challenging to fabricate high-quality perovskite films and preferred crystal orientation on commercially textured silicon substrates with micrometersize ***,we introduced a bulky organic molecule(4-fluorobenzylamine hydroiodide(F-PMAI))as a perovskite *** is found that F-PMAI can retard the crystallization process of perovskite film through hydrogen bond interaction between F^(−)and FA^(+)and reduce(111)facet surface energy due to enhanced adsorption energy of F-PMAI on the(111)***,the bulky molecular is extruded to the bottom and top of perovskite film after crystal growth,which can passivate interface defects through strong interaction between F-PMA+and undercoordinated Pb^(2+)/I^(−).As a result,the additive facilitates the formation of large perovskite grains and(111)preferred orientation with a reduced trap-state density,thereby promoting charge carrier transportation,and enhancing device performance and *** perovskite/silicon TSCs achieved a champion efficiency of 30.05%based on a silicon thin film tunneling *** addition,the devices exhibit excellent longterm thermal and light stability without *** work provides an effective strategy for achieving efficient and stable TSCs.