Journal
APPLIED SURFACE SCIENCE
Volume 290, Issue -, Pages 509-513Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2013.11.006
Keywords
Silica thin film; Glancing angle deposition; Sputtering
Categories
Funding
- CSIR, New Delhi
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Synthesis of silica thin films by RF magnetron sputtering using glancing angle deposition (GLAD) has been reported here. Films deposited at four different oblique angles (45 degrees, 60 degrees, 75 degrees, 85 degrees) show transition from featureless to columnar structure. The silica films have been characterized for their optical and wetting properties and they exhibit potential for use in applications such as antireflection coatings, self-cleaning coatings, antifogging coatings, etc. The reflectance decreases to a minimum of 3.15% whereas transmittance increases to a maximum of 93.43% when the films have been deposited at an oblique angle of 85 degrees. Water contact angle measurements were done to show the hydrophilic nature of the films. The hydrophilicity of the films gets enhanced and a minimum water contact angle of 20 degrees is achieved with increase in the oblique angle of deposition owing to the increase in the values of roughness. (C) 2013 Elsevier B.V. All rights reserved.
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