Air-assisted flow and two-step spin-coating for highly efficient CH3NH3PbI3 perovskite solar cells

被引：25

作者：

Eze, Vincent Obiozo ^{[1
]}

Lei, Binglong ^{[1
]}

Mori, Tatsuo ^{[1
]}

机构：

[1] Aichi Inst Technol, Dept Elect & Elect Engn, Toyota, Aichi 4700392, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2016年 / 55卷 / 02期

关键词：

TEMPERATURE; DEPOSITION; ELECTRON; LENGTHS; GROWTH; LIGHT; FILMS; SIZE;

D O I：

10.7567/JJAP.55.02BF08

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

There is a multitude of reports on different methods of fabricating organic-inorganic halide perovskite films for high-efficiency solar cells. In this study, planar heterojunction (PHJ) CH3NH3PbI3 perovskite solar cells were prepared by the two-step spin-coating method. The uniformity of the perovskite light-absorbing layer is enhanced by air-assisted flow (AAF). We compared the photovoltaic performance characteristics of films prepared with and without AAF. Perovskite solar cells constructed without AAF showed a power conversion efficiency (PCE) of 8.67%, whereas a higher PCE of 13.28% was obtained with an AAF-based perovskite solar cell. Our study presents a useful technique for preparing high-quality perovskite films. (C) 2016 The Japan Society of Applied Physics

引用

页数：7

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