Difluorobenzylamine Treatment of Organolead Halide Perovskite Boosts the High Efficiency and Stability of Photovoltaic Cells

doi:10.1021/acsami.1c23292

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	Difluorobenzylamine Treatment of Organolead Halide Perovskite Boosts the High Efficiency and Stability of Photovoltaic Cells
	Chu, Qian-Qian 1,2,3; Sun, Zhijian 3; Liu, Yan 2; Cui, Hao 4; Cheng, Bo 1; Dastan, Davoud 3; Moon, Kyoung-Sik 3; Yang, Guan-Jun 2; Wong, Ching-Ping 3
刊名	ACS Applied Materials and Interfaces
	2022-03-09
卷号	14 期号:9 页码:11388-11397
关键词	Defects Density functional theory Efficiency Lattice theory Moisture Passivation Perovskite solar cells Photoelectrochemical cells Solar cells Stability Carriers transport Defect density control Defects density Difluorobenzylamine passivation Halide perovskites High-performance perovskite solar cell Higher efficiency Hydrophobic groups Light-harvesting Performance
ISSN号	1944-8244
DOI	10.1021/acsami.1c23292
英文摘要	As one of the most competitive light-harvesting materials, organometal halide perovskites have attracted great attention due to their low-cost and top-down solution fabricability. However, the instability of perovskites in a moist environment reduces the potential for their commercialization. In this study, novel 2,4-fluorobenzylamine (FBA) was employed as the passivation material, which could successfully suppress the defects and improve the moisture resistance of perovskites, resulting in an ultrahigh power conversion efficiency of 17.6% for the carbon-based perovskite solar cells with good stability. Meanwhile, the whole process of interactions between the H2O molecule and the perovskite lattice was first elucidated by density functional theory calculations, which demonstrated the underlying mechanism of the improvement of moisture stability with the FBA treatment. This work opens up a new route toward addressing the main obstacles in the practical application of perovskite devices under ambient conditions. © 2022 American Chemical Society
语种	英语
出版者	American Chemical Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157866]
专题	省部共建有色金属先进加工与再利用国家重点实验室材料科学与工程学院
作者单位	1.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, 28 XianningWest Road, Xi’an; 710049, China; 3.School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Dr NW, Georgia, Atlanta; 30332, United States; 4.State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing; 400044, China
推荐引用方式 GB/T 7714	Chu, Qian-Qian,Sun, Zhijian,Liu, Yan,et al. Difluorobenzylamine Treatment of Organolead Halide Perovskite Boosts the High Efficiency and Stability of Photovoltaic Cells[J]. ACS Applied Materials and Interfaces,2022,14(9):11388-11397.
APA	Chu, Qian-Qian.,Sun, Zhijian.,Liu, Yan.,Cui, Hao.,Cheng, Bo.,...&Wong, Ching-Ping.(2022).Difluorobenzylamine Treatment of Organolead Halide Perovskite Boosts the High Efficiency and Stability of Photovoltaic Cells.ACS Applied Materials and Interfaces,14(9),11388-11397.
MLA	Chu, Qian-Qian,et al."Difluorobenzylamine Treatment of Organolead Halide Perovskite Boosts the High Efficiency and Stability of Photovoltaic Cells".ACS Applied Materials and Interfaces 14.9(2022):11388-11397.