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Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method

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Main Authors: Mohammad, Kashif, Syed Muhammad, Usman Ali, Mohamed A, Mohd Ali, Abdulgafour, H. I., Uda, Hashim, Prof. Dr., Willander, Magnus, Zainuriah, Hassan
Other Authors: uda@unimap.edu.my
Format: Article
Language:English
Published: WILEY-VCH Verlag GmbH & Co. 2012
Subjects:
Phonon redshift
Precursor and seed solution
Sol-gel
ZnO nanoflakes structures
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/20006
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spelling my.unimap-200062012-06-19T13:43:18Z Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method Mohammad, Kashif Syed Muhammad, Usman Ali Mohamed A, Mohd Ali Abdulgafour, H. I. Uda, Hashim, Prof. Dr. Willander, Magnus Zainuriah, Hassan uda@unimap.edu.my Phonon redshift Precursor and seed solution Sol-gel ZnO nanoflakes structures Link to publisher's homepage at http://onlinelibrary.wiley.com Two-dimensional (2D) ZnO nanoflakes were grown on thin aluminum layer, deposited on silicon substrate, using a sol-gel method. The surface morphologies of ZnO nanoflakes at different precursor concentrations were studied using scanning electron microscopy (SEM). Combined studies of SEM, photoluminescence (PL), and Raman spectroscopy suggested that nanorods started to grow along with nanoflakes at a precursor concentration of 0.05 M and the density of the nanorods significantly increased when the concentration was raised to 0.075 M. Both the UV-luminescence and Raman spectra were intensified and redshifted with the increment of precursor concentration. Spectral intensification suggests improvement in crystal qualities and better optical properties of the fabricated ZnO nanostructures. The structural defects at lower levels of precursor were probably due to the hypoxic environment, whereas, the redshift of PL and Raman spectra was due to the local heating of ZnO nanocrystals. 2012-06-19T13:43:17Z 2012-06-19T13:43:17Z 2012-01 Article Physica Status Solidi (A) Applications and Materials Science vol. 209(1), 2012, pages 143-147 1862-6300 http://onlinelibrary.wiley.com/doi/10.1002/pssa.201127357/abstract;jsessionid=F1A438E0CA14CEF4C27CD65864F8EB17.d03t02 http://hdl.handle.net/123456789/20006 en WILEY-VCH Verlag GmbH & Co.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Phonon redshift
Precursor and seed solution
Sol-gel
ZnO nanoflakes structures
spellingShingle Phonon redshift
Precursor and seed solution
Sol-gel
ZnO nanoflakes structures
Mohammad, Kashif
Syed Muhammad, Usman Ali
Mohamed A, Mohd Ali
Abdulgafour, H. I.
Uda, Hashim, Prof. Dr.
Willander, Magnus
Zainuriah, Hassan
Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
description Link to publisher's homepage at http://onlinelibrary.wiley.com
author2 uda@unimap.edu.my
author_facet uda@unimap.edu.my
Mohammad, Kashif
Syed Muhammad, Usman Ali
Mohamed A, Mohd Ali
Abdulgafour, H. I.
Uda, Hashim, Prof. Dr.
Willander, Magnus
Zainuriah, Hassan
format Article
author Mohammad, Kashif
Syed Muhammad, Usman Ali
Mohamed A, Mohd Ali
Abdulgafour, H. I.
Uda, Hashim, Prof. Dr.
Willander, Magnus
Zainuriah, Hassan
author_sort Mohammad, Kashif
title Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
title_short Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
title_full Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
title_fullStr Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
title_full_unstemmed Morphological, optical, and Raman characteristics of ZnO nanoflakes prepared via a sol-gel method
title_sort morphological, optical, and raman characteristics of zno nanoflakes prepared via a sol-gel method
publisher WILEY-VCH Verlag GmbH & Co.
publishDate 2012
url http://dspace.unimap.edu.my/xmlui/handle/123456789/20006
_version_ 1643792982707535872
score 13.222552

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