Influence of Mg doping on dielectric and optical properties of ZnO nano-plates prepared by wet chemical method
authors Zamiri, R; Singh, B; Bdikin, I; Rebelo, A; Belsley, MS; Ferreira, JMF
nationality International
journal SOLID STATE COMMUNICATIONS
author keywords ZnO; Semiconductor nanostructure; Dielectric properties; Optical properties
keywords ZINC-OXIDE; REFRACTIVE-INDEX; ENERGY-GAP; SEMICONDUCTORS; CRYSTAL; MODEL; GLASS
abstract Mg-doped ZnO nano-plates were successfully prepared by the low cost wet chemical method. X-ray diffraction (XRD) pattern revealed a polycrystalline pure hexagonal wurtzite structure. Scanning electron microscopy (SEM) was used to study the morphology of the synthesized samples. Further, Energy-dispersive X-ray spectroscopy (EDS) measurement confirmed the presence of Mg elements in the ZnO matrix. The UV-visible reflectance spectroscopy was applied to study the effect of dopant on band gap of pure ZnO. The result showed a slight decrease in the band gap with Mg doping. In addition, the dielectric analyses of the obtained samples were done in a wide frequency range and electronic properties of the pure and doped samples were analyzed using various theoretical models. These results suggested that the Mg-doped ZnO nano-plates have potential applications in the optoelectronic devices. The results were analyzed in derail. (C) 2014 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0038-1098
year published 2014
volume 195
beginning page 74
ending page 79
digital object identifier (doi) 10.1016/j.ssc.2014.07.011
web of science category Physics, Condensed Matter
subject category Physics
unique article identifier WOS:000341164700016
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journal impact factor 1.549
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