Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 仿生能源与储能系统团队

	Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells
	Zhou, Yuanyuan 1; Yang, Mengjin 2; Vasiliev, Alexander L.1; Garces, Hector F.1; Zhao, Yixin 3; Wang, Dong 4; Pang, Shuping 4; Zhu, Kai 2; Padture, Nitin P.1
刊名	Journal of Materials Chemistry A
	2015
卷号	3 期号:17 页码:9249-9256
英文摘要	CH3NH3PbI3 (MAPbI(3)) perovskite thin films that are solution-processed using either a one-step or two-step conventional method typically contain a significant number of defects (voids, pinholes) or PbI2 impurities, which have a detrimental effect on the performance of planar perovskite solar cells (PSCs) fabricated using those films. To overcome this issue, we show that enhancement of the solid-state reaction between inorganic-organic precursors is an effective route for the growth of compact, phase-pure MAPbI(3) perovskite thin films with no voids or pinholes. To ensure uniform solid-state conversion (MAI + PbI2 -> MAPbI(3)) across the entire film thickness, a new successive spin coating/annealing (SSCA) process is used, where MAI is repeatedly infiltrated into a nanoporous PbI2 film, followed by thermal annealing. The mechanisms involved in the SSCA process are elucidated by monitoring the evolution of the phases during the reaction. Owing to these desirable characteristics (high-purity, full-coverage, enhanced smoothness and compactness) of the SSCA MAPbI(3) films, planar PSCs based on these perovskite thin films delivered a maximum power conversion efficiency (PCE) close to 15%. Furthermore, PSCs fabricated using partially converted nanoporous PbI2 thin films delivered a surprising PCE approaching 10%, suggesting continuous MAPbI(3) phase formation throughout the entire film at each spin coating/annealing process. The advantages gained from enhancing the solid-state precursor reactions allow better control of the growth of the perovskite making the SSCA process more robust.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	VAPOR-DEPOSITION ; HOLE-CONDUCTOR ; HETEROJUNCTION ; IODIDE ; CHEMISTRY ; LENGTHS ; LIGHT
收录类别	SCI
语种	英语
WOS记录号	WOS:000353420800042
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn/handle/337004/6439]
专题	青岛生物能源与过程研究所_仿生能源与储能系统团队
作者单位	1.Brown Univ, Sch Engn, Providence, RI 02912 USA 2.Natl Renewable Energy Lab, Chem & Mat Sci Ctr, Golden, CO 80401 USA 3.Shanghai Jiao Tong Univ, Sch Environm Sci & Engn, Shanghai 200240, Peoples R China 4.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Yuanyuan,Yang, Mengjin,Vasiliev, Alexander L.,et al. Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells[J]. Journal of Materials Chemistry A,2015,3(17):9249-9256.
APA	Zhou, Yuanyuan.,Yang, Mengjin.,Vasiliev, Alexander L..,Garces, Hector F..,Zhao, Yixin.,...&Padture, Nitin P..(2015).Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells.Journal of Materials Chemistry A,3(17),9249-9256.
MLA	Zhou, Yuanyuan,et al."Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells".Journal of Materials Chemistry A 3.17(2015):9249-9256.