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作者机构:Univ Waterloo Dept Mech & Mechatron Engn Waterloo ON N2L 3G1 Canada Univ Waterloo Waterloo Inst Nanotechnol Waterloo ON N2L 3G1 Canada Soochow Univ Coll Chem Chem Engn & Mat Sci Suzhou 215123 Peoples R China SINOPEC Beijing Res Inst Chem Ind Co Ltd Beijing 100013 Peoples R China Soochow Univ Coll Chem Chem Engn & Mat Sci Lab Adv Optoelect Mat Suzhou Key Lab Novel Semicond Mat & Devices Suzhou 215123 Peoples R China
出 版 物:《NANO ENERGY》 (Nano Energy)
年 卷 期:2025年第135卷
核心收录:
学科分类:08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程(可授工学、理学学位)] 0703[理学-化学] 0702[理学-物理学]
基 金:National Natural Science Foundation of China [51673139, 91633301] Priority Academic Program Development of Jiangsu Higher Education Institutions State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials Waterloo Institute for Nanotechnology NSERC Discovery Program [RGPIN-03548-2023] Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Soochow University Collaborative Innovation Centre of Suzhou Nano Science and Technology
主 题:Perovskite solar cells Hole transport layer Copper sulfide Additive
摘 要:Although poly[bis(4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA) is a widely used hole transport layer (HTL) in perovskite solar cells, its poor conductivity and the mismatched energy levels between PTAA and formamidinium-based perovskites increase interfacial carrier recombination and charge-transport resistance. To solve these problems, inorganic CuS nanosheets were synthesized and applied as additives in PTAA for the first time. After the addition of CuS, the conductivity of the HTL improves, and the energy levels are better aligned. In addition, perovskite growth is controlled through the interaction between CuS and PbI2, thus improving the quality of the perovskite films, which reduces nonradiative recombination. The addition of CuS into PTAA improved the power conversion efficiency from 21.99 % to 22.92 %. Moreover, both the thermal and humidity stability improved.