Multi-functional SiO2 moth-eye pattern for photovoltaic applications

Ju Hyeon Shin, Yang Doo Kim, Hak Jong Choi, Sang Woo Ryu, Heon Lee

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A moth-eye pattern made of silica (SiO2) nanoparticles mixed with MIBK (methyl isobutyl ketone) was fabricated on a glass substrate using a direct printing method. The patterned glass was annealed to improve hardness and a heptdecafluoro-1,1,2,2-tetrahydrodecyl trichloro-silane based self-assembled monolayer (HDFS-SAM) was applied to the moth-eye pattern to reduce surface energy which improves hydrophobic properties. Compared to flat glass, the moth-eye patterned glass with a HDFS-SAM coating showed reduced reflectance, strong hardness, and high efficiency. As a result, the JSC of photovoltaic module was increased up to 1.9755 mA/cm2 and efficiency was improved by 4.66% by the increased current density (JSC) of photovoltaic system, and the external quantum efficiency was enhanced over the entire visible spectrum.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalSolar Energy Materials and Solar Cells
Volume126
DOIs
Publication statusPublished - 2014 Jul

Keywords

  • Anti-reflection structures
  • Moth-eye structures
  • Self-cleaning properties
  • Silica (SiO) sol-gel solution
  • Textured glass substrate

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

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