Self-cleaning effect of highly water-repellent microshell structures for solar cell applications

被引：187
作者：
Park, Yong-Bum [1 ]
Im, Hwon [1 ]
Im, Maesoon [1 ]
Choi, Yang-Kyu [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea
来源：
JOURNAL OF MATERIALS CHEMISTRY | 2011年 / 21卷 / 03期
关键词：
SUPERHYDROPHOBIC SURFACES; COATINGS; ADHESION; LOTUS; SNOW;
D O I：
10.1039/c0jm02463e
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A self-cleaning effect developed through the use of a superhydrophobic and water-repellent surface was demonstrated for solar cell applications. A perfectly ordered microshell array was fabricated on a transparent and flexible polydimethylsiloxane (PDMS) elastomer surface. This microshell PDMS showed an excellent water-repellent property with a contact angle (CA) higher than 150 degrees and a hysteresis of lower than 20 degrees, even without the aid of a low surface energy chemical coating. Fabricated superhydrophobic microshell PDMS showed a superior dust cleaning effect compared to that of flat PDMS, preventing the degradation by dust particles of solar cell efficiency. This transparent, flexible and superhydrophobic microshell PDMS surface provides feasibility for a practical application of superhydrophobic surfaces in solar cells.
引用
收藏
页码：633 / 636
页数：4
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