Comparative study of P-doped and undoped ZnO Nanostructures using thermal evaporation and vapor transport method

Al-Azri, K. and Nor, R.M. and Amin, Y.M. and Al-Ruqeishi, M.S. (2012) Comparative study of P-doped and undoped ZnO Nanostructures using thermal evaporation and vapor transport method. Jurnal Teknologi (Sciences and Engineering), 59 (SUPPL.). pp. 1-4. ISSN 01279696

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Abstract

We report the synthesis of phosphorus-doped (P-doped) and undoped ZnO nanostructures using a thermal evaporation and vapor transport on Si(100) substrate without any catalyst and at atmospheric argon pressure. The structural and optical properties of P-doped ZnO nanostructures and undoped ZnO nanostructures have been extensively investigated using filed emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and Photoluminescence (PL). FESEM observation reveals that the morphology of ZnO nanostructures was changed from a hexagonal-like shape to a spherical shape when doping with P. While, XRD results indicate that P-doped ZnO nanostructures lost the (002) orientation preference and became randomly oriented. In addition, shifting of (002) diffraction peak has been found due to the incorporation of P into ZnO. Room temperature (PL) spectrum of P-doped ZnO nanostructures shows a high efficiency of green emission which was attributed to the presence of phosphorus atoms in the ZnO nanostructures. © 2012 Penerbit UTM Press. All rights reserved.

Item Type: Article
Uncontrolled Keywords: Nanostructures; Photoluminescence, Zink oxide
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: miss munirah saadom
Date Deposited: 10 Jul 2013 04:34
Last Modified: 12 Nov 2013 00:12
URI: http://eprints.um.edu.my/id/eprint/7848

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