In Situ Observation of Vapor-Assisted 2D-3D Heterostructure Formation for Stable and Efficient Perovskite Solar Cells

doi:10.1021/acs.nanolett.9b04759

	In Situ Observation of Vapor-Assisted 2D-3D Heterostructure Formation for Stable and Efficient Perovskite Solar Cells
	Liu, Zhou1 ; Meng, Ke1 ; Wang, Xiao1 ; Qiao, Zhi1 ; Xu, Qiaofei1 ; Li, Shunde1 ; Cheng, Lei1 ; Li, Zhimin1,3 ; Chen, Gang1,2
	2020-02
发表期刊	NANO LETTERS (IF:9.6[JCR-2023],10.1[5-Year])
ISSN	1530-6984
EISSN	1530-6992
卷号	20 期号:2 页码:1296-1304
发表状态	已发表
DOI	10.1021/acs.nanolett.9b04759
摘要	The heterogeneous stacking of a thin two-dimensional (2D) perovskite layer over the three-dimensional (3D) perovskite film creates a sophisticated architecture for perovskite solar cells (PSCs). It combines the remarkable thermal and environmental stabilities of 2D perovskites with the superior optoelectronic properties of 3D materials which resolves the chronic stability issue with no compromise on efficiency. Herein, we propose the vapor-assisted growth strategy to fabricate high-quality 2D/3D heterostructured perovskite films by introducing long-chain organoamine gases in which the 2D layers have a uniform and tunable thickness. The 3D to 2D transformation of the widely adopted MAPbI(3) (MA = methylammonium) film is initiated by the butylamine vapor and monitored through the in situ grazing-incidence X-ray diffraction technique. A variety of 2D species are observed and rationalized by the different collapsing and reconstruction models of the Pb-I octahedra. The PSC devices based on the optimized 2D/3D heterostructures show significant improvements in photovoltaic performances, owing to better energy level alignments, longer carrier lifetimes, and less defects as compared to their 3D analogues. In addition, both the butylamine vapor-treated perovskite films and the derived PSC devices demonstrate exceptional long-term stabilities.
关键词	perovskite vapor-assisted growth 2D-3D heterostructure GI-XRD in situ
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	Science and Technology Commission of Shanghai Municipality[14JC1493300] ; Science and Technology Commission of Shanghai Municipality[17M412000] ; Science and Technology Commission of Shanghai Municipality[19ZR1476900]
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:000514255400059
出版者	AMER CHEMICAL SOC
EI入藏号	20201008264961
EI主题词	D region ; Lead compounds ; Perovskite
EI分类号	Meteorology:443 ; Minerals:482.2
WOS关键词	HALIDE PEROVSKITES ; STABILITY ; VOLTAGE ; GROWTH ; FILMS
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/119171
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_陈刚组物质科学与技术学院_博士生信息科学与技术学院_博士生
通讯作者	Chen, Gang
作者单位	1.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 3.Univ Shanghai Sci & Technol, Sch Environm & Architecture, Shanghai 200093, Peoples R China
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	Liu, Zhou,Meng, Ke,Wang, Xiao,et al. In Situ Observation of Vapor-Assisted 2D-3D Heterostructure Formation for Stable and Efficient Perovskite Solar Cells[J]. NANO LETTERS,2020,20(2):1296-1304.
APA	Liu, Zhou.,Meng, Ke.,Wang, Xiao.,Qiao, Zhi.,Xu, Qiaofei.,...&Chen, Gang.(2020).In Situ Observation of Vapor-Assisted 2D-3D Heterostructure Formation for Stable and Efficient Perovskite Solar Cells.NANO LETTERS,20(2),1296-1304.
MLA	Liu, Zhou,et al."In Situ Observation of Vapor-Assisted 2D-3D Heterostructure Formation for Stable and Efficient Perovskite Solar Cells".NANO LETTERS 20.2(2020):1296-1304.