CVD PREPARED Mn-DOPED ZnO NANOWIRES

Mn-doped ZnO nanowires prepared by chemical vapor deposition (CVD) were obtained in the temperature range of 450–500°C. X-ray diffraction patterns, SEM and TEM images indicate that crystals with a hexagonal structure grow along the c axis. At low Mn-doped concentrations, photoluminescence (PL) and R...

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Main Authors: T.L. Phan, R. Vincent, D. Cherns, N.X. Nghia
Format: Article
Language:English
Published: Universiti Brunei Darussalam 2017-11-01
Series:ASEAN Journal on Science and Technology for Development
Subjects:
Online Access:http://www.ajstd.org/index.php/ajstd/article/view/191
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author T.L. Phan
R. Vincent
D. Cherns
N.X. Nghia
author_facet T.L. Phan
R. Vincent
D. Cherns
N.X. Nghia
author_sort T.L. Phan
collection DOAJ
description Mn-doped ZnO nanowires prepared by chemical vapor deposition (CVD) were obtained in the temperature range of 450–500°C. X-ray diffraction patterns, SEM and TEM images indicate that crystals with a hexagonal structure grow along the c axis. At low Mn-doped concentrations, photoluminescence (PL) and Raman scattering (RS) spectra are almost independent of the Mn doping. However, the increase in concentration of Mn above 1.6 at% weakens significantly the PL signal and the RS-lines intensity in the low wavenumber range of 300–480 cm-1, and concurrently increases the RS-lines intensity in the higher wavenumber range of 480-700 cm-1.. Magnetic measurements determined the Curie temperature of Mn-doped ZnO nanowire to be about 37 K.
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spelling doaj.art-9728429ef56b46fdab540bb88e8cc82a2024-02-02T07:30:16ZengUniversiti Brunei DarussalamASEAN Journal on Science and Technology for Development0217-54602224-90282017-11-01241&212513010.29037/ajstd.191186CVD PREPARED Mn-DOPED ZnO NANOWIREST.L. Phan0R. Vincent1D. Cherns2N.X. Nghia3Microstructures Group, Department of Physics, University of Bristol, Bristol BS8 1TLMicrostructures Group, Department of Physics, University of Bristol, Bristol BS8 1TLMicrostructures Group, Department of Physics, University of Bristol, Bristol BS8 1TLInstitute of Materials Science, Academy of Science and Technology (VAST), HanoiMn-doped ZnO nanowires prepared by chemical vapor deposition (CVD) were obtained in the temperature range of 450–500°C. X-ray diffraction patterns, SEM and TEM images indicate that crystals with a hexagonal structure grow along the c axis. At low Mn-doped concentrations, photoluminescence (PL) and Raman scattering (RS) spectra are almost independent of the Mn doping. However, the increase in concentration of Mn above 1.6 at% weakens significantly the PL signal and the RS-lines intensity in the low wavenumber range of 300–480 cm-1, and concurrently increases the RS-lines intensity in the higher wavenumber range of 480-700 cm-1.. Magnetic measurements determined the Curie temperature of Mn-doped ZnO nanowire to be about 37 K.http://www.ajstd.org/index.php/ajstd/article/view/191Mn-doped ZnOspintronics materials
spellingShingle T.L. Phan
R. Vincent
D. Cherns
N.X. Nghia
CVD PREPARED Mn-DOPED ZnO NANOWIRES
ASEAN Journal on Science and Technology for Development
Mn-doped ZnO
spintronics materials
title CVD PREPARED Mn-DOPED ZnO NANOWIRES
title_full CVD PREPARED Mn-DOPED ZnO NANOWIRES
title_fullStr CVD PREPARED Mn-DOPED ZnO NANOWIRES
title_full_unstemmed CVD PREPARED Mn-DOPED ZnO NANOWIRES
title_short CVD PREPARED Mn-DOPED ZnO NANOWIRES
title_sort cvd prepared mn doped zno nanowires
topic Mn-doped ZnO
spintronics materials
url http://www.ajstd.org/index.php/ajstd/article/view/191
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AT rvincent cvdpreparedmndopedznonanowires
AT dcherns cvdpreparedmndopedznonanowires
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