CH3NH3PbIxCl(3-x) thin film prepared by vapor transfer method for perovskite solar cells

被引：9

作者：

Liu, Yitong ^{[1
]}

Feng, Kejie ^{[1
]}

Hsieh, Rong-Hsuan ^{[1
]}

Mo, Xiaoliang ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China

来源：

MATERIALS LETTERS | 2019年 / 239卷

关键词：

Organic mixed halide perovskite; Solar cells; Vapor transfer method; HIGHLY EFFICIENT; EXTRACTION; CL;

D O I：

10.1016/j.matlet.2018.12.048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

While exhibiting favourable photoelectric properties, I/Cl mix halide (CH3NH3PbIxCl(3-x)) perovskite absorbers are usually deficient (or even devoid) in Cl according to many characterizations including XRD and EDS. Herein, a Vapor Transfer Method (VTM), providing an isolated reaction environment to reduce the potential loss of Cl, was applied to fabricate both CH3NH3PbI3 and CH3NH3PbIxCl(3-x) perovskite solar cells to figure out how Cl exist in CH3NH3PbIxCl(3-x). Perovskite films with smooth surfaces with good surface coverage were obtained, and the existence of Cl and CH3NH3PbI3/CH3NH3PbCl3 mixed crystals were verified in CH3NH3PbIxCl(3-x) films. We also found that CH3NH3PbIxCl(3-x) films have better surface coverage, better size uniformity and higher power conversion efficiency (PCE) of 9.92%. This research provided an approach linked the existence of Cl and the performance of CH3NH3PbIxCl(3-x) absorber films together. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：163 / 166

页数：4

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