Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures

Mixed morphologies of Ga-doped Zinc Oxide (ZnO) nanostructures are synthesized by vapor transport method. Systematic scanning electron microscope (SEM) studies of different morphologies, after periodic heat treatments, gives direct evidence of sublimation. SEM micrographs give direct evidence that m...

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Detalles Bibliográficos
Autores principales: Manzoor, Umair, Kim, Do K., Islam, Mohammad, Bhatti, Arshad S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904914/
https://www.ncbi.nlm.nih.gov/pubmed/24489725
http://dx.doi.org/10.1371/journal.pone.0086418
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author Manzoor, Umair
Kim, Do K.
Islam, Mohammad
Bhatti, Arshad S.
author_facet Manzoor, Umair
Kim, Do K.
Islam, Mohammad
Bhatti, Arshad S.
author_sort Manzoor, Umair
collection PubMed
description Mixed morphologies of Ga-doped Zinc Oxide (ZnO) nanostructures are synthesized by vapor transport method. Systematic scanning electron microscope (SEM) studies of different morphologies, after periodic heat treatments, gives direct evidence of sublimation. SEM micrographs give direct evidence that morphological defects of nanostructures can be removed by annealing. Ultra Violet (UV) and visible emission depends strongly on the annealing temperatures and luminescent efficiency of UV emission is enhanced significantly with each subsequent heat treatment. X-Ray diffraction (XRD) results suggest that crystal quality improved by annealing and phase separation may occur at high temperatures.
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spelling pubmed-39049142014-01-31 Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures Manzoor, Umair Kim, Do K. Islam, Mohammad Bhatti, Arshad S. PLoS One Research Article Mixed morphologies of Ga-doped Zinc Oxide (ZnO) nanostructures are synthesized by vapor transport method. Systematic scanning electron microscope (SEM) studies of different morphologies, after periodic heat treatments, gives direct evidence of sublimation. SEM micrographs give direct evidence that morphological defects of nanostructures can be removed by annealing. Ultra Violet (UV) and visible emission depends strongly on the annealing temperatures and luminescent efficiency of UV emission is enhanced significantly with each subsequent heat treatment. X-Ray diffraction (XRD) results suggest that crystal quality improved by annealing and phase separation may occur at high temperatures. Public Library of Science 2014-01-28 /pmc/articles/PMC3904914/ /pubmed/24489725 http://dx.doi.org/10.1371/journal.pone.0086418 Text en © 2014 Manzoor et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Manzoor, Umair
Kim, Do K.
Islam, Mohammad
Bhatti, Arshad S.
Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title_full Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title_fullStr Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title_full_unstemmed Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title_short Removal of Micrometer Size Morphological Defects and Enhancement of Ultraviolet Emission by Thermal Treatment of Ga-Doped ZnO Nanostructures
title_sort removal of micrometer size morphological defects and enhancement of ultraviolet emission by thermal treatment of ga-doped zno nanostructures
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3904914/
https://www.ncbi.nlm.nih.gov/pubmed/24489725
http://dx.doi.org/10.1371/journal.pone.0086418
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