Superhydrophobic and antireflective nanograss-coated glass for high performance solar cells

Hyo Jin Gwon, Yensil Park, Cheon Woo Moon, Sahn Nahm, Seok Jin Yoon, Soo Young Kim, Ho Won Jang

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)


We present a facile method for producing superhydrophobic nanograss-coated (SNGC) glass surfaces that possess both reduced reflectivity and self-cleaning properties at the air/glass interface. The refractive index of a CaF2 nanograss (NG) layer on a glass substrate, deposited by glancing angle vapor deposition, is 1.04 at 500 nm, which is the second-lowest value ever reported so far. The fluorinated NG layer gives rise to a high water contact angle (>150°) and very efficient cleaning out of dust with water drops. Using the dual functionalities of the SNGC glass, we demonstrate superhydrophobic and antireflective organic photovoltaic cells with excellent power conversion efficiency. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)670-678
Number of pages9
JournalNano Research
Issue number5
Publication statusPublished - 2014 May


  • antireflective
  • glancing angle deposition
  • nanograss
  • self-cleaning
  • solar cells
  • superhydrophobic

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering


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