Initializing film homogeneity to retard phase segregation for stable perovskite solar cells

doi:10.1126/science.abn3148

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	Initializing film homogeneity to retard phase segregation for stable perovskite solar cells
	Bai, Yang 10,11; Huang, Zijian 9; Zhang, Xiao 11; Lu, Jiuzhou 11; Niu, Xiuxiu 11; He, Ziwen 8; Zhu, Cheng 11; Xiao, Mengqi 11; Song, Qizhen 11; Wei, Xueyuan 11
刊名	SCIENCE
	2022-11-18
卷号	378 期号:6621 页码:8
ISSN号	0036-8075
DOI	10.1126/science.abn3148
通讯作者	Chen, Qi(qic@bit.edu.cn)
英文摘要	The mixtures of cations and anions used in hybrid halide perovskites for high-performance solar cells often undergo element and phase segregation, which limits device lifetime. We adapted Schelling's model of segregation to study individual cation migration and found that the initial film inhomogeneity accelerates materials degradation. We fabricated perovskite films (FA(1-x)Cs(x)PbI(3); where FA is formamidinium) through the addition of selenophene, which led to homogeneous cation distribution that retarded cation aggregation during materials processing and device operation. The resultant devices achieved enhanced efficiency and retained >91% of their initial efficiency after 3190 hours at the maximum power point under 1 sun illumination. We also observe prolonged operational lifetime in devices with initially homogeneous FACsPb(Br0.13I0.87)(3) absorbers.
资助项目	National Natural Science Foundation of China[U21A20172] ; National Natural Science Foundation of China[21975028] ; National Natural Science Foundation of China[52172182] ; National Natural Science Foundation of China[22011540377] ; National Natural Science Foundation of China[62125404] ; National Natural Science Foundation of China[U1932201] ; National Natural Science Foundation of China[11705225] ; Beijing Municipal Natural Science Foundation[JQ19008]
WOS关键词	LEAD IODIDE PEROVSKITE ; HALIDE PEROVSKITES ; EFFICIENCY ; FORMAMIDINIUM ; PERFORMANCE ; STABILITY ; CATION ; DEGRADATION
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	AMER ASSOC ADVANCEMENT SCIENCE
WOS记录号	WOS:000994748600001
资助机构	National Natural Science Foundation of China ; Beijing Municipal Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.ia.ac.cn/handle/173211/53396]
专题	自动化研究所_智能感知与计算研究中心
通讯作者	Chen, Qi
作者单位	1.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China 4.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China 5.Auner Technol Co Ltd, Beijing 100084, Peoples R China 6.Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing Inst Technol, Beijing 100081, Peoples R China 7.Chinese Acad Sci, Beijing Key Lab New Energy Mat & Devices, Key Lab Renewable Energy, Beijing 100190, Peoples R China 8.Chinese Acad Sci, Natl Lab Pattern Recognit, Inst Automat, Ctr Res Intelligent Percept & Comp, Beijing 100190, Peoples R China 9.Peking Univ, Dept Mat Sci & Engn, Coll Engn, Beijing 100871, Peoples R China 10.Beijing Inst Technol, Adv Res Inst Multidisciplinary Sci, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Bai, Yang,Huang, Zijian,Zhang, Xiao,et al. Initializing film homogeneity to retard phase segregation for stable perovskite solar cells[J]. SCIENCE,2022,378(6621):8.
APA	Bai, Yang.,Huang, Zijian.,Zhang, Xiao.,Lu, Jiuzhou.,Niu, Xiuxiu.,...&Chen, Qi.(2022).Initializing film homogeneity to retard phase segregation for stable perovskite solar cells.SCIENCE,378(6621),8.
MLA	Bai, Yang,et al."Initializing film homogeneity to retard phase segregation for stable perovskite solar cells".SCIENCE 378.6621(2022):8.