2017年1月
Highly Efficient and Stable Perovskite Solar Cells by Interfacial Engineering Using Solution-Processed Polymer Layer
JOURNAL OF PHYSICAL CHEMISTRY C
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- 巻
- 121
- 号
- 3
- 開始ページ
- 1562
- 終了ページ
- 1568
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1021/acs.jpcc.6b12137
- 出版者・発行元
- AMER CHEMICAL SOC
Solution-processed organo-lead halide perovskite solar cells with deep pinholes in the perovskite layer lead to shunt-current leakage in devices. Herein, we report a facile method for improving the performance of perovskite solar cells by inserting a solution-processed polymer layer between the perovskite layer and the hole-transporting layer. The photovoltaic conversion efficiency of the perovskite solar cell increased to 18.1% and the stability decreased by only about 5% during 20 days of exposure in moisture ambient conditions through the incorporation of a poly(methyl methacrylate) (PMMA) polymer layer. The improved photovoltaic performance of devices with a PMMA layer is attributed to the reduction of carrier recombination loss from pinholes, boundaries, and surface states of perovskite layer. The significant gain generated by this simple procedure supports the use of this strategy in further applications of thin-film optoelectronic devices.
- リンク情報
- ID情報
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- DOI : 10.1021/acs.jpcc.6b12137
- ISSN : 1932-7447
- Web of Science ID : WOS:000393008900023