Details

Autor(en) / Beteiligte

• Son, Jaesung
• Kundu, Shreya
• Verma, Lalit K.
• Sakhuja, Mridul
• Danner, Aaron J.
• Bhatia, Charanjit S.
• Yang, Hyunsoo

Titel

A practical superhydrophilic self cleaning and antireflective surface for outdoor photovoltaic applications

Ist Teil von

• Solar energy materials and solar cells, 2012-03, Vol.98, p.46-51

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Much attention has been recently focused on realizing, by chemical treatment, an artificial superhydrophobic surface with elevated roughness in order to achieve both self cleaning and antireflective effects because superhydrophobic surface with surface functionalization is believed to be effective for the self cleaning effect, mimicking a lotus leaf. Various hydrophobic, hydrophilic, superhydrophobic, and superhydrophilic glasses are evaluated by monitoring the variation of water contact angle (CA), optical transmittance, and photovoltaic performance under outdoor conditions for 12 weeks. Our results show a nanopatterned superhydrophilic glass without surface chemical treatment exhibits more efficient self cleaning and antireflective effects, leading to only 1.39% of drop of solar cell efficiency during an outdoor test for 12 weeks, while the solar cells with bare glass packaging and fluorinated superhydrophobic packaging show 7.79% and 2.62% of efficiency drop, respectively. ► Various glass surfaces are tested for self cleaning and antireflective properties. ► We examine the contact angle, optical transmittance, and photovoltaic performance. ► Directly patterned superhydrophilic glass shows the best performance after 12 weeks. ► Surface chemical treatment process is unnecessary.