Chhikara, Deepak and Srivatsa, K. M. K. and Muthusamy, Senthil Kumar (2014) On the synthesis and characterization of ZnO/MgO nanocomposite by thermal evaporation technique. Solid State Sciences, 37. pp. 108-113. ISSN 1293-2558

PDF - Published Version Restricted to Registered users only Download (2193Kb) | Request a copy

Abstract

ZnO/MgO nanocomposites have been synthesized by an easy and cost effective thermal evaporation technique. Various growth temperatures ranging from 800 to 900 degrees C were tried. It is observed that the process temperature plays a key role in the formation of ZnO/MgO nanocomposite and the proper formation of ZnO/MgO nanocomposite occurs at 875 degrees C temperature as confirmed by X-ray diffraction studies. Scanning electron microscopic images indicate that the ZnO/MgO nanocomposite is formed as agglomerated nanoparticles distributed over a large area. Energy dispersive X-ray analyses also reveal that the Mg composition in the synthesized nanocomposite strongly depends on the process temperature. Photoluminescence (PL) spectrum exhibits a blue shift for the ZnO/MgO nanocomposite synthesized at 875 degrees C indicating the incorporation of Mg into the ZnO crystal lattice. A higher PL intensity ratio of band-edge to deep band emission has been observed for this sample indicating the presence of low crystalline defects.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier.
Uncontrolled Keywords:	ZnO/MgO nanocomposite Thermal evaporation X-ray diffraction Scanning electron microscopy Photoluminescence
Subjects:	Chemistry Physics
Divisions:	UNSPECIFIED
Depositing User:	Dr. Rajpal Walke
Date Deposited:	29 Oct 2015 11:07
Last Modified:	29 Oct 2015 11:07
URI:	http://npl.csircentral.net/id/eprint/1446

Actions (login required)

View Item