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 journalArticlepeer-review

21 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

Bibliographical note

Funding Information:
This work (Grant no. C0018361 ) was supported by Business for Cooperative R&D between Industry, Academy, and Research Institute funded by Korea Small and Medium Business Administration in 2012. Also, this research was supported by the Pioneer Research Center Program through the National Research Foundation of Korea funded by the Ministry of Science, ICT & Future Planning ( NRF-2013M3C1A3063597 ).

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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