钝化
材料科学
钙钛矿(结构)
钙钛矿太阳能电池
石英晶体微天平
太阳能电池
化学工程
图层(电子)
降级(电信)
聚合物
涂层
纳米技术
光电子学
复合材料
有机化学
化学
工程类
电信
吸附
计算机科学
作者
In‐Sung Hwang,Inyoung Jeong,Jinwoo Lee,Min Jae Ko,Kijung Yong
标识
DOI:10.1021/acsami.5b04490
摘要
In this study, a novel and facile passivation process for a perovskite solar cell is reported. Poor stability in ambient atmosphere, which is the most critical demerit of a perovskite solar cell, is overcome by a simple passivation process using a hydrophobic polymer layer. Teflon, the hydrophobic polymer, is deposited on the top of a perovskite solar cell by a spin-coating method. With the hydrophobic passivation, the perovskite solar cell shows negligible degradation after a 30 day storage in ambient atmosphere. Suppressed degradation of the perovskite film is proved in various ways: X-ray diffraction, light absorption spectrum, and quartz crystal microbalance. This simple but effective passivation process suggests new kind of approach to enhance stability of perovskite solar cells to moisture.
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