Comparative study of P-doped and undoped ZnO Nanostructures using thermal evaporation and vapor transport method
Document Type
Article
Publication Date
1-1-2012
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.
Keywords
Nanostructures, Photoluminescence, Zink oxide
Divisions
PHYSICS
Publication Title
Jurnal Teknologi (Sciences and Engineering)
Volume
59
Issue
SUPPL.