Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines

doi:10.1002/adma.201903559

	Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines
	Chen, Hao1,2,3 ; Wei, Qi1 ; Saidaminov, Makhsud, I 4; Wang, Fei1 ; Johnston, Andrew 4; Hou, Yi 4; Peng, Zijian1 ; Xu, Kaimin1 ; Zhou, Wenjia1 ; Liu, Zhenghao 5; Qiao, Lu 6; Wang, Xiao1 ; Xu, Siwen1 ; Li, Jiangyu 5,7; Long, Run 6; Ke, Youqi1 ; Sargent, Edward H.4; Ning, Zhijun1
	2019-09-30
发表期刊	ADVANCED MATERIALS
ISSN	0935-9648
发表状态	已发表
DOI	10.1002/adma.201903559
摘要	Large-bandgap perovskites offer a route to improve the efficiency of energy capture in photovoltaics when employed in the front cell of perovskite-silicon tandems. Implementing perovskites as the front cell requires an inverted (p-i-n) architecture; this architecture is particularly effective at harnessing high-energy photons and is compatible with ionic-dopant-free transport layers. Here, a power conversion efficiency of 21.6% is reported, the highest among inverted perovskite solar cells (PSCs). Only by introducing a secondary amine into the perovskite structure to form MA(1-)(x)DMA(x)PbI(3) (MA is methylamine and DMA is dimethylamine) are defect density and carrier recombination suppressed to enable record performance. It is also found that the controlled inclusion of DMA increases the hydrophobicity and stability of films in ambient operating conditions: encapsulated devices maintain over 80% of their efficiency following 800 h of operation at the maximum power point, 30 times longer than reported in the best prior inverted PSCs. The unencapsulated devices show record operational stability in ambient air among PSCs.
关键词	defect density inverted structure perovskite solar cells secondary amine stability
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	US Department of the Navy, Office of Naval Research[N00014-17-1-2524]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000488150500001
出版者	WILEY-V C H VERLAG GMBH
EI主题词	Amines ; Convergence of numerical methods ; Defect density ; Perovskite
WOS关键词	TOTAL-ENERGY CALCULATIONS ; HYBRID ; CONVERSION ; TRANSPORT ; LAYERS
原始文献类型	Article ; Early Access
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/80411
专题	物质科学与技术学院_硕士生物质科学与技术学院_PI研究组_柯友启组物质科学与技术学院_PI研究组_宁志军组物质科学与技术学院_本科生物质科学与技术学院_博士生
通讯作者	Sargent, Edward H.; Ning, Zhijun
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China 4.Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada 5.Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen Key Lab Nanobiomech, Shenzhen 518055, Guangdong, Peoples R China 6.Beijing Normal Univ, Minist Educ, Coll Chem, Key Lab Theoret & Computat Photochem, Beijing 100875, Peoples R China 7.Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA
第一作者单位	物质科学与技术学院
通讯作者单位	物质科学与技术学院
第一作者的第一单位	物质科学与技术学院
推荐引用方式 GB/T 7714	Chen, Hao,Wei, Qi,Saidaminov, Makhsud, I,et al. Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines[J]. ADVANCED MATERIALS,2019.
APA	Chen, Hao.,Wei, Qi.,Saidaminov, Makhsud, I.,Wang, Fei.,Johnston, Andrew.,...&Ning, Zhijun.(2019).Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines.ADVANCED MATERIALS.
MLA	Chen, Hao,et al."Efficient and Stable Inverted Perovskite Solar Cells Incorporating Secondary Amines".ADVANCED MATERIALS (2019).