Mathpal, Mohan Chandra and Tripathi, Anand Kumar and Singh, Manish Kumar and Gairola, S. P. and Pandey, S. N. and Agarwal, Arvind (2013) Effect of annealing temperature on Raman spectra of TiO2 nanoparticles. Chemical Physics Letters, 555. pp. 182-186. ISSN 0009-2614

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Abstract

ol-gel method has been used to prepare pure anatase and anatase-rutile mixed phase TiO2 nanoparticles by calcination at different temperatures. The influences of calcination temperature on structure, band gap, luminescence properties and Raman spectra have been investigated. A clear evidence of structural transformation from pure anatase to anatase-rutile mixed phase structures has been confirmed by X-ray diffraction (XRD). Photoluminescence spectroscopy (PL) shows that the change in structure is also responsible for exhibiting the change in PL intensity. The Raman spectroscopy exhibits the anomalous behavior for band broadening and shifting of Raman bands with increasing crystallite size.

Item Type:	Article
Additional Information:	copyright for this article belongs to M/s Elsevier
Subjects:	Chemistry > Physical Chemistry Physics > Atomic and Molecular Physics
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	19 Aug 2026 10:17
Last Modified:	19 Aug 2026 10:17
URI:	https://npl.csircentral.net/id/eprint/3284

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