Antifouling property of highly oleophobic substrates for solar cell surfaces

Kenta Fukada, Shingo Nishizawa, Seimei Shiratori

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Reduction of solar cell conversion efficiency by bird spoor or oil smoke is a common issue. Maintaining the surface of solar cells clean to retain the incident light is of utmost importance. In this respect, there has been growing interest in the area of superhydrophobicity for developing water repelling and self-cleaning surfaces. This effect is inspired by lotus leaves that have micro papillae covered with hydrophobic wax nanostructures. Superhydrophobic surfaces on transparent substrates have been developed for removing contaminants from solar cell surfaces. However, oil cannot be removed by superhydrophobic effect. In contrast, to prevent bird spoor, a highly oleophobic surface is required. In a previous study, we reported transparent-type fabrics comprising nanoparticles with a nano/micro hierarchical structure that ensured both oleophobicity and transparency. In the current study, we developed new highly oleophobic stripes that were constructed into semi-transparent oleophobic surfaces for solar cells. Solar cell performance was successfully maintained; the total transmittance was a key factor for determining conversion efficiency.

Original languageEnglish
Article number103516
JournalJournal of Applied Physics
Volume115
Issue number10
DOIs
Publication statusPublished - 2014 Mar 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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