Hydrophilic dots on hydrophobic nanopatterned surfaces as a flexible gas barrier

Jin Hwan Choi, Young Min Kim, Young Wook Park, Tae Hyun Park, Ki Young Dong, Byeong Kwon Ju

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The present study demonstrates a transparent polymeric gas barrier film mimicking the Namib Desert beetle's back. SiO2 hydrophilic dots have been deposited on a nanopatterned hydrophobic surface. A nanopatterned surface was fabricated by UV-curable nanoimprinting techniques. The surface energies of the hydrophobic and hydrophilic domains were 7.29 and < 73.12 mN/m, respectively. The characteristics of water vapor transfer from hydrophobic to hydrophilic regions due to difference of the attractive force at interfaces are shown to yield the enhanced barrier performance according to the Ca degradation measurements. This strategy is suitable for organic electronics, solar cells, and plastic optics applications requiring moisture-free properties with high transmission.

Original languageEnglish
Pages (from-to)7156-7160
Number of pages5
JournalLangmuir
Volume25
Issue number12
DOIs
Publication statusPublished - 2009 Jun 16

Fingerprint

Beetles
Steam
Plastics
Gases
beetles
deserts
gases
Interfacial energy
moisture
Water vapor
surface energy
water vapor
Optics
Solar cells
Electronic equipment
Moisture
plastics
solar cells
optics
degradation

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Choi, J. H., Kim, Y. M., Park, Y. W., Park, T. H., Dong, K. Y., & Ju, B. K. (2009). Hydrophilic dots on hydrophobic nanopatterned surfaces as a flexible gas barrier. Langmuir, 25(12), 7156-7160. https://doi.org/10.1021/la804325x

Hydrophilic dots on hydrophobic nanopatterned surfaces as a flexible gas barrier. / Choi, Jin Hwan; Kim, Young Min; Park, Young Wook; Park, Tae Hyun; Dong, Ki Young; Ju, Byeong Kwon.

In: Langmuir, Vol. 25, No. 12, 16.06.2009, p. 7156-7160.

Research output: Contribution to journalArticle

Choi, JH, Kim, YM, Park, YW, Park, TH, Dong, KY & Ju, BK 2009, 'Hydrophilic dots on hydrophobic nanopatterned surfaces as a flexible gas barrier', Langmuir, vol. 25, no. 12, pp. 7156-7160. https://doi.org/10.1021/la804325x
Choi, Jin Hwan ; Kim, Young Min ; Park, Young Wook ; Park, Tae Hyun ; Dong, Ki Young ; Ju, Byeong Kwon. / Hydrophilic dots on hydrophobic nanopatterned surfaces as a flexible gas barrier. In: Langmuir. 2009 ; Vol. 25, No. 12. pp. 7156-7160.
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