Application of an amphipathic molecule at the NiO_(x)/perovskite interface for improving the efficiency and long-term stability of the inverted perovskite solar cells

作     者：Guibin Shen Hongye Dong Fan Yang Xin Ren Ng Xin Li Fen Lin Cheng Mu Guibin Shen;Hongye Dong;Fan Yang;Xin Ren Ng;Xin Li;Fen Lin;Cheng Mu

作者机构：Key Laboratory of Advanced Light Conversion Materials and BiophotonicsDepartment of ChemistryRenmin University of ChinaBeijing 100872China Solar Energy Research Institute of Singapore(SERIS)National University of SingaporeSingapore 117574Singapore State Key Laboratory of Materials Processing and Die&Mold TechnologySchool of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074HubeiChina Department of ChemistryNational University of Singapore3 Science Drive 3Singapore 117574Singapore 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2023年第78卷第3期

页      面：454-462,I0013页

核心收录：

学科分类：0820[工学-石油与天然气工程] 0808[工学-电气工程] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 080501[工学-材料物理与化学] 0827[工学-核科学与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 

基　　金：supported by the National Key Research and Development Program of China(2018YFA0208701) the National Natural Science Foundation of China(21773308) the Research Funds of Renmin University of China(2017030013,201903020 and 20XNH059) the Fundamental Research Funds for Central Universities(China) supported by the Solar Energy Research Institute of Singapore(SERIS) at the National University of Singapore(NUS) supported by NUS the National Research Foundation Singapore(NRF) the Energy Market Authority of Singapore(EMA) the Singapore Economic Development Board(EDB) the financial support from the China Scholarship Council(CSC) funding 

主　　题：Perovskite solar cells NiO_(x) Defect passivation Long-term stability Amphipathic molecule 

摘      要：The presence of defects and detrimental reactions at NiO_(x)/perovskite interface extremely limit the efficiency performance and long-term stability of the perovskite solar cells(PSCs) based on NiO_(x).Herein,an amphipathic molecule Triton X100(Triton) is modified on the NiO_(x)*** hydrophilic chain of Triton as a Lewis base additive can coordinate with the Ni3+on the NiO_(x)surface which can passivate the interfacial defects and hinder the detrimental reactions at the NiO_(x)/perovskite ***,the hydrophobic chain of Triton protrudes from the NiO_(x)surface to prevent moisture from penetrating into the NiO_(x)/perovskite ***,the NiO_(x)/Triton-based devices(MAPbI3as absorbing layer) show superior moisture and thermal stability,retaining 88.4% and 64.3% of the initial power conversion efficiency after storage in air(40%-50% relative humidity(RH)) at 25 ℃ for 1070 h and in N2at 85℃ for 800 h,***,the efficiency increases from 17.59% to 19.89% because of the passivation defect and enhanced hole-extraction ***,the NiO_(x)/Triton-based PSCs with Cs_(0.05)(MA_(0.15)FA_(0.85))_(0.95)Pb(I_(0.85)Br_(0.15))3perovskite as the light-absorbing layer also exhibits better moisture and thermal stability compared to the control devices,indicating the viability of our *** particular note,a champion PCE of 22.35% and 20.46% was achieved for small-area(0.1 cm^(2)) and large-area(1.2 cm^(2)) NiO_(x)/Triton-based devices,respectively.