Ultrasmooth perovskite film via mixed anti-solvent strategy with improved efficiency

doi:10.1021/acsami.6b14270

	Ultrasmooth perovskite film via mixed anti-solvent strategy with improved efficiency
	Yu, Yu 1,2; Yang, Songwang 1; Lei, Lei 1; Cao, Qipeng 1,2; Shao, Jun 1,2; Zhang, Sheng 1,3; Liu, Yan 1
刊名	ACS Applied Materials and Interfaces
	2017
卷号	9 期号:4 页码:3667-3676
ISSN号	19448244
DOI	10.1021/acsami.6b14270
英文摘要	Most antisolvents employed in previous research were miscible with perovskite precursor solution. They always led to fast formation of perovskite even if the intermediate stage existed, which was not beneficial to obtain high quality perovskite films and made the formation process less controllable. In this work, a novel ethyl ether/n-hexane mixed antisolvent (MAS) was used to achieve high nucleation density and slow down the formation process of perovskite, producing films with improved orientation of grains and ultrasmooth surfaces. These high quality films exhibited efficient charge transport at the interface of perovskite/hole transport material and perovskite solar cells based on these films showed greatly improved performance with the best power conversion efficiency of 17.08%. This work also proposed a selection principle of MAS and showed that solvent engineering by designing the mixed antisolvent system can lead to the fabrication of high-performance perovskite solar cells. © 2017 American Chemical Society.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25891]
专题	中国科学院上海硅酸盐研究所
作者单位	1.CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai; 201899, China; 2.University of Chinese, Academy of Sciences, Beijing; 100039, China; 3.School of Environmental and Materials Engineering, College of Engineering, Shanghai Second Polytechnic University, Shanghai; 201209, China
推荐引用方式 GB/T 7714	Yu, Yu,Yang, Songwang,Lei, Lei,et al. Ultrasmooth perovskite film via mixed anti-solvent strategy with improved efficiency[J]. ACS Applied Materials and Interfaces,2017,9(4):3667-3676.
APA	Yu, Yu.,Yang, Songwang.,Lei, Lei.,Cao, Qipeng.,Shao, Jun.,...&Liu, Yan.(2017).Ultrasmooth perovskite film via mixed anti-solvent strategy with improved efficiency.ACS Applied Materials and Interfaces,9(4),3667-3676.
MLA	Yu, Yu,et al."Ultrasmooth perovskite film via mixed anti-solvent strategy with improved efficiency".ACS Applied Materials and Interfaces 9.4(2017):3667-3676.