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

被引:83
作者
Kaviyarasu, K. [1 ]
Premanand, D. [1 ]
Kennedy, J. [2 ]
Manikandan, E. [3 ]
机构
[1] St Xavier Coll, Mat Res Ctr, Dept Phys, Palayankottai 627002, India
[2] GNS Sci, Natl Isotope Ctr, Ion Beam Phys & Nanotechnol, Lower Hutt, New Zealand
[3] B S Abdur Rahman Univ, Nano Res Ctr, Dept Phys, Chennai 600048, India
关键词
XRD; UV-Vis; PL; mu-Raman; HR-TEM studies;
D O I
10.1142/S0219581X13500336
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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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页数:6
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