Rapid crystallization in ambient air for planar heterojunction perovskite solar cells
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- 作者：Gwang Su Shin ; Won-Gyu Choi ; Sungjae Na ; Sang Ouk Ryu…
- 关键词：CH3NH3PbI3 ; thin film coverage ; crystallization ; air processing ; planar heterojunction solar cells
- 刊名：Electronic Materials Letters
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：13
- 期：1
- 页码：72-76
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Optical and Electronic Materials; Condensed Matter Physics; Nanotechnology and Microengineering; Characterization and Evaluation of Materials; Nanotechnology;
- 出版者：The Korean Institute of Metals and Materials
- ISSN：2093-6788
- 卷排序：13
文摘
Organic-inorganic hybrid perovskite solar cells have attracted great interest because of rapid improvement of power-conversion efficiency and strong potential for low fabrication cost. The development of cost-effective routes producing high quality perovskite films has been continuously demanded. Here, it is shown that crystalline perovskite films with completely coated morphology can be formed using the precursors of MACl and PbI2 without post-annealing under atmosphere. The dense perovskite films composed of the closely packed islands are observed with the smooth surface. The planar cells with p-i-n heterojunction geometry are successfully demonstrated using PEDOT:PSS and PCBM. Significantly, the outstanding electrical properties are observed, which demonstrates the good coverage and crystallinity of the perovskite layers.