Optical and Structural Properties of Thermally Evaporated Zinc Oxide Thin Films on Polyethylene Terephthalate Substrates

Zinc oxide thin films of different thicknesses ranging from 100 to 300 nm were prepared on polyethylene terephthalate substrates with thermal evaporation in a vacuum of approximately 3×10-5 Torr. X-ray diffraction patterns confirm the proper phase formation of the material. From atomic force microsc...

Full description

Saved in:
Bibliographic Details
Main Authors: M. G. Faraj, K. Ibrahim
Format: Article
Language:English
Published: Wiley 2011-01-01
Series:International Journal of Polymer Science
Online Access:http://dx.doi.org/10.1155/2011/302843
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Zinc oxide thin films of different thicknesses ranging from 100 to 300 nm were prepared on polyethylene terephthalate substrates with thermal evaporation in a vacuum of approximately 3×10-5 Torr. X-ray diffraction patterns confirm the proper phase formation of the material. From atomic force microscopy (AFM) images, it was found that the root mean square roughness of the film surface increased as the film thickness increased. The optical properties of ZnO on PET substrates were determined through the optical transmission method using an ultraviolet-visible spectrophotometer. The optical band gap values of ZnO thin films slightly decreased as the film thickness increased.
ISSN:1687-9422
1687-9430