Enhancing Stability of Perovskite Solar Cells to Moisture by the Facile Hydrophobic Passivation

被引：325

作者：

Hwang, Insung ^{[1
]}

Jeong, Inyoung ^{[2
,3
]}

Lee, Jinwoo ^{[2
]}

Ko, Min Jae ^{[3
,4
]}

Yong, Kijung ^{[1
]}

机构：

[1] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Surface Chem Lab Elect Mat, Pohang Si 790784, South Korea

[2] Pohang Univ Sci & Technol POSTECH, Dept Chem Engn, Adv Funct Nanomat Lab, Pohang Si 790784, South Korea

[3] Korea Inst Sci & Technol, PhotoElect Hybrids Res Ctr, Seoul 136791, South Korea

[4] Korea Univ, KU KIST Grad Sch Converging Sci & Technol, Seoul 136701, South Korea

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 31期

基金：

新加坡国家研究基金会;

关键词：

perovskite solar cell; stability; hydrophobicity; passivation; encapsulation; degradation of perovskite; HIGH-PERFORMANCE; EFFICIENT; HYSTERESIS; NANOROD; LIGHT; LAYER;

D O I：

10.1021/acsami.5b04490

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

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.

引用

页码：17330 / 17336

页数：7

共 27 条

[11] 6.5% efficient perovskite quantum-dot-sensitized solar cell [J].