Sahoo, Prasana and Dhara, S and Dash, S and Raj, Baldev and Manna, Indranil and Tyagi , A K (2011) Air trapped nanocavity induced superhydrophobicity on GaN microbelt. Applied Physics Letters, 98 (4). Article No.-043103. ISSN 0003-6951

PDF - Published Version Restricted to Registered users only Download (1027Kb) | Request a copy

Abstract

In the present study, nanotextured surface protrusion induced superhydrophobicity in GaN microbelt is reported. The results show that along with nanometer-scale topographic features, the special air trapped nanocavities formed beneath the liquid droplet are solely responsible for the transition of superhydrophobicity having hydrophilic origin in GaN. The built-in nanocavities, ( ~ 80 nm in diameter) provide an ideal model for producing stable air trapped region. A calculation of shape of the meniscus at the interface of air and water in an isolated cavity correlates well with the macroscopic surface wetting behavior.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	21 May 2012 07:43
Last Modified:	21 May 2012 07:59
URI:	http://cgcri.csircentral.net/id/eprint/1420

Actions (login required)

View Item