Moisture annealing effect on CH3NH3PbI3 films deposited by solvent engineering method

被引：13

作者：

Yin, Xingtian ^{[1
]}

Guo, Yuxiao ^{[1
]}

Liu, Jie ^{[1
]}

Chen, Peng ^{[1
]}

Chen, Wei ^{[1
]}

Que, Meidan ^{[1
]}

Que, Wenxiu ^{[1
]}

Niu, Chunming ^{[2
]}

Bian, Jihong ^{[3
]}

Yang, Yaodong ^{[3
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Int Ctr Dielect Res, Elect Mat Res Lab,Key Lab,Minist Educ, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, CNRE, Xian 710049, Shaanxi, Peoples R China

[3] Xi An Jiao Tong Univ, Frontier Inst Sci & Technol, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

来源：

THIN SOLID FILMS | 2017年 / 636卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Perovskite solar cells; Humidity; Moisture; Annealing; PEROVSKITE SOLAR-CELLS; DEVICE EFFICIENCY ENHANCEMENT; PHOTOPHYSICAL PROPERTIES; TEMPERATURE; CRYSTALLIZATION; HYSTERESIS; MORPHOLOGY; GROWTH;

D O I：

10.1016/j.tsf.2017.07.013

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Moisture has been reported to be positive for organic-inorganic halide perovskite films formation during their annealing process in several literatures. Here we report a comprehensive study of moisture effect on the annealing process of CH3NH3PbI3 films deposited by solvent engineering method. Perovskite intermediate phase films are deposited by spin coating in a glove box and then annealed in the glove box or air with different humidity. Different from previous reports, the presence of moisture dramatically deteriorates the film morphology, and too high humidity even retards the formation of the perovskite from its intermediate phase. However, the crystallinity, conductivity and optical properties of the films are greatly improved, which in turn contributes to a much better device performance. This work suggests that the effect of moisture annealing on perovskite films is closely related to the deposition method and composition, and the deterioration of surface morphology does not necessarily lead to worse device performance. (c) 2017 Elsevier B.V. All rights reserved.

引用

页码：664 / 670

页数：7

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