Affiliation:
1. Department of Electronics and Communication Engineering, National Institute of Technology Nagaland, Dimapur 797103, India
Abstract
In this article, vertically aligned WO3 nanowires were synthesized by employing the glancing angle deposition technique. The significant improvement in the crystallinity and surface morphology of the synthesized WO3 nanowires were observed for 500 °C annealed
samples and beyond that temperature it starts degrading. The X-ray diffraction confirmed the different phase transition after annealing. Increase in crystallite size from 68.93 nm to 77.41 nm was observed with the increase in annealing temperature from 300 °C to 500 °C. Upon 250 nm
excitation, a broad blue emission aroused by near band edge emission is observed. Also, other emission peaks were observed due to the localized states of oxygen vacancies in the conduction band of WO3. Fourier transform infrared result shows the bonding of WO3 nanowires
and intensity were greatly enhanced as the annealing temperature increases up to 500 °C. These enhancements in the properties could be applicable for the development of WO3 based nanodevices.
Publisher
American Scientific Publishers
Subject
Condensed Matter Physics,General Materials Science,Biomedical Engineering,General Chemistry,Bioengineering
Cited by
6 articles.
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