Raman Scattering from ZnTe Nanocrystals Depending on Different Excitation Wavelengths

ZnTe nanocrystals were synthesized in NaOH solution by hydrothermal method and they were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and micro-Raman spectroscopy. The results indicate that the ZnTe nanocrystals were crystallized in cubic zincblende structure and...

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Bibliographic Details
Published in:Key engineering materials 2013-01, Vol.538, p.34-37
Main Authors: Wang, Bi Ben, Wang, Jing, Dong, Guo Bo, Li, Hua, Wang, Mei
Format: Article
Language:English
Subjects:
Band theory
Diffraction
Excitation
Nanocrystals
Raman scattering
Wavelengths
X-ray diffraction
Zinc tellurides
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Summary:ZnTe nanocrystals were synthesized in NaOH solution by hydrothermal method and they were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and micro-Raman spectroscopy. The results indicate that the ZnTe nanocrystals were crystallized in cubic zincblende structure and their morphologies and sizes are polyhedron and diversified, respectively. The Raman results show that different scattering occurred from the ZnTe nanocrystals depending different excitation wavelengths. According to theories related to band-gap and Raman scattering, the excitation wavelength-dependent Raman scattering from the ZnTe nanocrystals was analyzed.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.538.34