Moisture assisted perovskite film growth for high performance solar cells

被引：667

作者：

You, Jingbi ^{[1
]}

Yang, Yang ^{[1
]}

Hong, Ziruo ^{[1
]}

Song, Tze-Bin ^{[1
]}

Meng, Lei ^{[1
]}

Liu, Yongsheng ^{[1
]}

Jiang, Chengyang ^{[1
]}

Zhou, Huanping ^{[1
]}

Chang, Wei-Hsuan ^{[1
]}

Li, Gang ^{[1
]}

Yang, Yang ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 18期

基金：

美国国家科学基金会;

关键词：

HIGH-EFFICIENCY; LOW-COST; WATER; LENGTHS;

D O I：

10.1063/1.4901510

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Moisture is assumed to be detrimental to organometal trihalide perovskite, as excess water can damage the crystallinity of the perovskite structure. Here, we report a growth mode for via thermal annealing of the perovskite precursor film in a humid environment (e. g., ambient air) to greatly improve the film quality, grain size, carrier mobility, and lifetime. Our method produces devices with maximum power conversion efficiency of 17.1% and a fill factor of 80%, revealing a promising route to achieve high quality perovskite polycrystalline films with superior optoelectronic properties that can pave the way towards efficient photovoltaic conversion. (C) 2014 AIP Publishing LLC.

引用

页数：5

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