Effect of Temperature on Shape &amp; Optical Properties of MgO/ZnO Nanocomposites

K. Tamizh Selvi; M. Rathnakumari; M. Priya; P. Suresh Kumar

doi:10.14233/ajchem.2014.16586

Issue

Vol. 26 No. 18 (2014): Vol 26 Issue 18

Issue Published : September 1, 2014

This work is licensed under a Creative Commons Attribution 4.0 International License.

Effect of Temperature on Shape & Optical Properties of MgO/ZnO Nanocomposites

https://doi.org/10.14233/ajchem.2014.16586

K. Tamizh Selvi

Department of Physics, Vel Tech High Tech Engineering College, Avadi, Chennai-600 062, India

M. Rathnakumari

Department of Physics, Velammal Engineering College, Chennai-600 066, India

M. Priya

Department of Physics, Saveetha Engineering College, Chennai-602 105, India

P. Suresh Kumar

Department of Physics, Velammal Engineering College, Chennai-600 066, India

Corresponding Author(s) : K. Tamizh Selvi

yadava_tamizhselvi@rediffmail.com

Asian Journal of Chemistry, Vol. 26 No. 18 (2014): Vol 26 Issue 18
Article Published : September 2, 2014

Abstract

MgO/ZnO nanocomposites were synthesized by mixing magnesium acetate tetrahydrate and zinc acetate in the equimolar ratio through a simple reflux method. The refluxed sample was annealed at three different temperatures 400, 500 and 600 ºC, respectively. X-ray diffraction spectra (XRD) showed wurtzite ZnO structure with cubic MgO. The HR-SEM picture showed the rod shaped morphology at 400 °C and morphology changed to spherical shape with the increase in temperature to 600 °C. Williamson-Hall plot is used to study the particle size and micro strain of the synthesized MgO/ZnO nanocomposites. The band gap and luminescent property were investigated using ultra violet-visible and photoluminescence spectra. The optical property of MgO/ZnO nanocomposites depends on the annealing temperature which is shown by the increase in the band gap as temperature increases.

Keywords

MgO-ZnO nanocomposites Photoluminescence Ultra violet-visible HRSEM and EDAX

Tamizh Selvi, K., Rathnakumari, M., Priya, M., & Suresh Kumar, P. (2014). Effect of Temperature on Shape & Optical Properties of MgO/ZnO Nanocomposites. Asian Journal of Chemistry, 26(18), 6050–6054. https://doi.org/10.14233/ajchem.2014.16586

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Q.G. Al-Zaidi, A.M. Suhail and W.R. Al-Azawi, Applied Phys. Res., 3, 89 (2011); doi:10.5539/apr.v3n1p89.

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S. Thakoor, H.G. Leduce, J.A. Stern, A.P. Thakoor and S.K. Khanna, J. Vac. Sci. Technol. Vacuum, Surfaces and Films, 5, 1721 (1987); doi:10.1116/1.574517.

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F. Houze, R. Meyer, O. Schneegans and L. Boyer, Appl. Phys. Lett., 69, 1975 (1996); doi:10.1063/1.117179.

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A.P. Chatterjee, P. Mitra and A.K. Mukhopadhyay, J. Mater. Sci., 34, 4225 (1999); doi:10.1023/A:1004694501646.

S. Basu and A. Dutta, Sens. Actuators B, 22, 83 (1994); doi:10.1016/0925-4005(94)87004-7.

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J.G. Ma, Y.C. Liu and C.L. Shao, J.Y. Zhang, Y.M. Lu, D.Z. Shen and X.W. Fan, Phys. Rev. B, 71, 125430 (2005).

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G.N.S. Vijayakumar, S. Devashankar, M. Rathnakumari and P. Sureshkumar, J. Alloys Comp., 507, 225 (2010); doi:10.1016/j.jallcom.2010.07.161.

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W.-C. Sun, Y.-C. Yeh, C.-T. Ko, H. He and M.-J. Chen, Nanoscale Res. Lett., 6, 556 (2011); doi:10.1186/1556-276X-6-556.

X. Qiu, G. Li and L. Li, J. Mater. Res., 22, 908 (2007); doi:10.1557/jmr.2007.0142.

S.K. Chaudhuri, M. Ghosh, D. Das and A.K. Raychaudhuri, J. Appl. Phys., 108, 064319 (2010); doi:10.1063/1.3483247.