Flattening Grain Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability

doi:10.1002/adma.202211155

IMECH-IR > 非线性力学国家重点实验室

	Flattening Grain Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability
	Hao, Mingwei ; Duan, Tianwei ; Ma ZW(马知未); Ju, MingGang ; Bennett, JosephA.; Liu, Tanghao ; Guo, Peijun 4; Zhou, Yuanyuan
发表期刊	ADVANCED MATERIALS
	2023
ISSN	0935-9648
摘要	Optomechanical reliability has emerged as an important criterion for evaluating the performance and commercialization potential of perovskite solar cells (PSCs) due to the mechanical property mismatch of metal halide perovskites with other device layer. In this work, grain boundary grooves, a rarely discussed film microstructural characteristic, are found to impart significant effects on the optomechanical reliability of perovskite substrate heterointerfaces and thus PSC performance. By pre burying iso butylammonium chloride additive in the electron transport layer (ETL), GB grooves (GBGs) are flattened and an optomechanically reliable perovskite heterointerface that resists photothermal fatigue is created. The improved mechanical integrity of the ETL perovskite heterointerfaces also benefits the charge transport and chemical stability by facilitating carrier injection and reducing moisture or solvent trapping, respectively. Accordingly, high performance PSCs which exhibit efficiency retentions of 94.8% under 440 h damp heat test (85% RH and 85 degrees C), and 93.0% under 2000 h continuous light soaking are achieved.
关键词	grain boundary grooves interface modification microstructural characteristics optomechanical reliability perovskite solar cells
DOI	10.1002/adma.202211155
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000943191000001
WOS研究方向	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS类目	Chemistry ; Science & Technology Other Topics ; Materials Science ; Physics
项目资助者	Hong Kong Research Grant Council (RGC) [52222318] ; National Natural Science Foundation of China [22300221] ; HKBU ; Yale University ; [12302822]
论文分区	一类
力学所作者排名	3
RpAuthor	Zhou, YY (corresponding author), Hong Kong Baptist Univ, Dept Phys, Hong Kong, Peoples R China.
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91844
专题	非线性力学国家重点实验室
作者单位	1.Hong Kong Baptist Univ, Dept Phys, Hong Kong, Peoples R China 2.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 3.Southeast Univ, Dept Phys, Nanjing 211189, Jiangsu, Peoples R China 4.Bennett, Joseph A.] Yale Univ, Dept Chem, New Haven, CT 06520 USA 5.Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06520 USA
推荐引用方式 GB/T 7714	Hao, Mingwei,Duan, Tianwei,Ma ZW,et al. Flattening Grain Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability[J]. ADVANCED MATERIALS,2023.
APA	Hao, Mingwei.,Duan, Tianwei.,马知未.,Ju, MingGang.,Bennett, JosephA..,...&Zhou, Yuanyuan.(2023).Flattening Grain Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability.ADVANCED MATERIALS.
MLA	Hao, Mingwei,et al."Flattening Grain Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability".ADVANCED MATERIALS (2023).

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