Effects of grooved surface with nano-ridges on amplification of hydrophobic property

Dong Ki Lee, Jun Hyung Lee, Younghak Cho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper shows how much the size of groove and ridge, which were fabricated on the silicon wafer, affected on the hydrophobicity of the grooved surface without chemical treatments and with chemical treatment such as self-assembled monolayers (SAMs) of organic silane. Furthermore, the contact angles (CAs) of water droplet on specimens were measured and compared with theoretical CAs of droplet in Cassie-Baxter state. The experimental results indicated that the specimen with the extensive groove width had super-hydrophobicity as compared to the specimen with relatively narrow groove width. The highest CAs of chemically non-treated specimens and chemically treated specimens were 171.9 ° and 173.1 °. This work explains that the grooved surface with nano-ridges and SAM coating contributes to improve hydrophobicity of surface.

Original languageEnglish
Title of host publicationAdvances in Applied Materials and Electronics Engineering II
Pages26-31
Number of pages6
DOIs
StatePublished - 2013
Event2nd International Conference on Applied Materials and Electronics Engineering, AMEE 2013 - Hong Kong, China
Duration: 19 Apr 201320 Apr 2013

Publication series

NameAdvanced Materials Research
Volume684
ISSN (Print)1022-6680

Conference

Conference2nd International Conference on Applied Materials and Electronics Engineering, AMEE 2013
Country/TerritoryChina
CityHong Kong
Period19/04/1320/04/13

Keywords

  • Contact angle (CA)
  • Grooved surface
  • Nano-Ridge
  • Super-Hydrophobic
  • Wettability

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