Rational Design on Chemical Regulation of Interfacial Microstress Engineering by Matching Young's Modulus in a CsPbBr3Perovskite Film with Mechanical Compatibility toward Enhanced Photoelectric Conversion Efficiency

doi:10.1021/acsami.2c02694

	Rational Design on Chemical Regulation of Interfacial Microstress Engineering by Matching Young's Modulus in a CsPbBr3Perovskite Film with Mechanical Compatibility toward Enhanced Photoelectric Conversion Efficiency
	Cui, Chong-Yang 1,2; Li, Cai-Xia 1,2; Liu, Wen-Wu1,2 ; Liu, Yu-Cheng 1,2; Niu, Sheng-Tao 1,2; Xu, Zhi-Qiang 1,2; Zou, Rong1,2 ; Niu, Wen-Jun1,2 ; Liu, Mao-Cheng1,2 ; Liu, Ming-Jin 3,4,5
	2022-04-22
发表期刊	ACS Applied Materials and Interfaces
ISSN	1944-8244
卷号	14 期号:17 页码:20257-20267
摘要	Thermodynamically induced tensile stress in the perovskite film will lead to the formation of atomic vacancies, seriously destroying the photovoltaic efficiency stability of the perovskite solar cells (PSCs). Among them, cations and halide anions vacancies are unavoidable; these point vacancies are considered to be a major source of the ionic migration and perovskite degradation at the crystal boundary and surface of the perovskite films. Here, we use choline bromide to modify the perovskite film by occupying the atomic defects in the CsPbBr3perovskite film. The results show that the zwitterion quaternary ammonium ions and bromide ions in choline bromide can simultaneously occupy the Cs+cation and Br-anions vacancies in the perovskite film by the ionic bonding effect, for which the defect-state density on the surface of the perovskite film can be significantly reduced, leading to the effective enhancement of carrier lifetime. In addition, the residual stress at the crystal boundary can be effectively reduced by lowering the Young's modulus in the CsPbBr3perovskite film. As a result, the optimized device achieves a photoelectric conversion efficiency (PCE) of 9.06% with an increase of 41.1% compared to the control device with a PCE of 6.42%. Most importantly, the newborn thermal stress due to thermal expansion during heat working conditions can be transferred from the polycrystalline perovskite to the carbon layer by the matched Young's modulus, thus resulting in improved stability perovskite film under environmental conditions. The work provides new insights for preparing high-quality perovskite films with low defect-state density and residual stress. © 2022 American Chemical Society. All rights reserved.
关键词	Bromine compounds Carrier lifetime Cell engineering Chemical stability Conversion efficiency Efficiency Elastic moduli Perovskite Perovskite solar cells Positive ions Solar power generation Thermal expansion Anion vacancy Choline bromide Cspbbr3perovskite solar cell Improved stability Matched young modulus Perovskite films Photo-electric conversion efficiency Stress release Thermal stress release Young modulus
DOI	10.1021/acsami.2c02694
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000812975200001
出版者	American Chemical Society
EI入藏号	20221912079149
EI主题词	Thermal stress
EI分类号	461.1 Biomedical Engineering ; 482.2 Minerals ; 525.5 Energy Conversion Issues ; 615.2 Solar Power ; 641.1 Thermodynamics ; 701.1 Electricity: Basic Concepts and Phenomena ; 702.3 Solar Cells ; 801 Chemistry ; 913.1 Production Engineering ; 931.2 Physical Properties of Gases, Liquids and Solids ; 951 Materials Science
来源库	WOS
引用统计	被引频次：6[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/158485
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马克思主义学院
通讯作者	Liu, Wen-Wu; Wu, You-Zhi; Chueh, Yu-Lun
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, PR, Peoples R China; 2.Lanzhou Univ Technol, Coll Mat Sci & Engn, Lanzhou 730050, PR, Peoples R China; 3.Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan; 4.Natl Tsing Hua Univ, Frontier Res Ctr Fundamental & Appl Sci Matters, Hsinchu 30013, Taiwan; 5.Natl Sun Yat Sen Univ, Dept Phys, Kaohsiung 80424, Taiwan; 6.Zibo Inst Measurement Technol, Zibo 255020, Peoples R China; 7.Foshan Flex Photon Co Ltd, Foshan 528299, Peoples R China
第一作者单位	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
通讯作者单位	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; 理学院
第一作者的第一单位	省部共建有色金属先进加工与再利用国家重点实验室
推荐引用方式 GB/T 7714	Cui, Chong-Yang,Li, Cai-Xia,Liu, Wen-Wu,et al. Rational Design on Chemical Regulation of Interfacial Microstress Engineering by Matching Young's Modulus in a CsPbBr3Perovskite Film with Mechanical Compatibility toward Enhanced Photoelectric Conversion Efficiency[J]. ACS Applied Materials and Interfaces,2022,14(17):20257-20267.
APA	Cui, Chong-Yang.,Li, Cai-Xia.,Liu, Wen-Wu.,Liu, Yu-Cheng.,Niu, Sheng-Tao.,...&Chueh, Yu-Lun.(2022).Rational Design on Chemical Regulation of Interfacial Microstress Engineering by Matching Young's Modulus in a CsPbBr3Perovskite Film with Mechanical Compatibility toward Enhanced Photoelectric Conversion Efficiency.ACS Applied Materials and Interfaces,14(17),20257-20267.
MLA	Cui, Chong-Yang,et al."Rational Design on Chemical Regulation of Interfacial Microstress Engineering by Matching Young's Modulus in a CsPbBr3Perovskite Film with Mechanical Compatibility toward Enhanced Photoelectric Conversion Efficiency".ACS Applied Materials and Interfaces 14.17(2022):20257-20267.