期刊
SOLAR RRL
卷 3, 期 8, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.201900154
关键词
improved efficiency and stability; interface passivation; perovskite solar cells; surface chlorination treatment; zinc oxide-chlorine
资金
- Special Project of the Province-University Co-constructing Program of Jilin Province [SXGJXX2017-3]
- Science and Technology Innovation Leading Talent and Team Project of Jilin Province [20170519010JH]
- International Cooperation and Exchange Project of Jilin Province [20170414002GH, 20180414001GH]
Defect states on the zinc oxide (ZnO) surface cause severe interfacial charge recombination and perovskite decomposition during device operation, which inevitably leads to efficiency loss and poor device stability, making the usage of ZnO in perovskite solar cells (PSCs) problematic. Herein, a simple and effective method of inorganic chlorination treatment is used to passivate the surface defects of the ZnO electron transport layer. It is shown that chlorine (Cl) effectively fills the oxygen vacancy defects of ZnO, suppressing charge recombination and facilitating charge transport at the perovskite/ZnO interface. Therefore, the resulting CH3NH3PbI3-based device achieves an enhanced power conversion efficiency with suppressed hysteresis. Meanwhile, the chlorination of the ZnO surface protects the perovskite layer from decomposition, thus improving device stability. Herein, an ingenious method is developed to further improve the device performance of ZnO-based PSCs and useful guidance is provided for the development of other perovskite optoelectronics, especially those with ZnO as the charge transport layer.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据