Novel technique for large scale production of spherical tungsten oxide nanoparticles
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A simple modification in hot filament chemical vapour deposition has been used to control the growth of tungsten oxide nanoparticles on a large scale where the as-deposited material is mostly amorphous in nature with a few nanoparticles. However, upon annealing in air, almost all the material converts into spherical nanoparticles with a low size dispersion as characterized by TEM. X-ray diffraction, XPS and PL were used for structural, compositional and optical analysis.
KeywordsTungsten Oxide Tungsten Filament Triclinic Phase Tungsten Oxide Nanoparticles Nanostructured Tungsten Oxide
The authors would like to specially thank Dr. P. V. A Satyam of Institute of Physics, Bhubaneswar, India for his support in TEM analysis.
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