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SYNTHESIS OF Mg DOPED TiO₂ NANOCRYSTALS PREPARED BY WET-CHEMICAL METHOD: OPTICAL AND MICROSCOPIC STUDIES

Materials Research Centre, Department of Physics, St. Xavier's College, Palayamkottai 627002, India

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Materials Research Centre, Department of Physics, St. Xavier's College, Palayamkottai 627002, India

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Ion Beam Physics & Nanotechnology, National Isotope Centre, GNS Science, New Zealand

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Nano Research Centre, Department of Physics, B S Abdur Rahman University, Chennai 600048, India

Corresponding author.

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https://doi.org/10.1142/S0219581X13500336Cited by:75 (Source: Crossref)

Abstract

In this work, we report the successful formation of MgO doped TiO₂ nanocrystals (NCs) by simple wet-chemical method. The XRD exhibits a marginal decrease in the crystalline size of TiO₂ nanosamples by the addition of MgO dopant. UV–Vis spectral analysis shows that the addition of MgO in TiO₂ resulted in the red shift of the absorption edge. The optical energy band-gap and molecular vibrational analysis of doped nanosample was ascertained from photoluminescence (PL) and micro-Raman scattering technique respectively. HR-TEM analysis reveals that the substitution has sharply reduced the particle size of TiO₂NCs.

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Vol. 12, No. 05

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History

Received 2 September 2013

Accepted 18 November 2013

Published: 7 January 2014

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