Understanding the solvent-assisted crystallization mechanism inherent in efficient organic-inorganic halide perovskite solar cells

doi:10.1039/c4ta05635c

CORC > 化学研究所 > 中国科学院化学研究所

	Understanding the solvent-assisted crystallization mechanism inherent in efficient organic-inorganic halide perovskite solar cells
	Shen, Dinghan 1; Yu, Xiao 1; Cai, Xin 1; Peng, Ming 1; Ma, Yingzhuang 2; Su, Xin 1; Xiao, Lixin 2; Zou, Dechun 1,3
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2014
卷号	2 期号:48 页码:20454-20461
ISSN号	2050-7488
DOI	10.1039/c4ta05635c
英文摘要	N,N-Dimethylformamide (DMF) has been shown to be an efficient precursor solvent for the one-step deposition of perovskite thin films in photovoltaic applications. Here, the specific advantage DMF introduces during the perovskite crystallization process is elucidated through comparison with dimethylacetamide (DMAc), one of its homologues. The unique presence of a DMF-induced intermediate phase was verified for the first time and its positive functions to inhibit uncontrolled perovskite precipitation and facilitate homogeneous nucleation were demonstrated. When combined with a double blocking layer structure to prevent shunting, our planar heterojunction (PHJ) perovskite solar cells achieved a high power conversion efficiency of up to 13.8%. Our results uncover the origin of the widespread adoption of DMF in perovskite thin film deposition, and represent a helpful step towards judicious perovskite morphological control.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000345531200004
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43483]
专题	中国科学院化学研究所
通讯作者	Zou, Dechun
作者单位	1.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Peking Univ, Dept Phys, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Beijing Inst Nanoenergy & Nanosyst, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Shen, Dinghan,Yu, Xiao,Cai, Xin,et al. Understanding the solvent-assisted crystallization mechanism inherent in efficient organic-inorganic halide perovskite solar cells[J]. JOURNAL OF MATERIALS CHEMISTRY A,2014,2(48):20454-20461.
APA	Shen, Dinghan.,Yu, Xiao.,Cai, Xin.,Peng, Ming.,Ma, Yingzhuang.,...&Zou, Dechun.(2014).Understanding the solvent-assisted crystallization mechanism inherent in efficient organic-inorganic halide perovskite solar cells.JOURNAL OF MATERIALS CHEMISTRY A,2(48),20454-20461.
MLA	Shen, Dinghan,et al."Understanding the solvent-assisted crystallization mechanism inherent in efficient organic-inorganic halide perovskite solar cells".JOURNAL OF MATERIALS CHEMISTRY A 2.48(2014):20454-20461.