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Título:
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Influence of growth parameters on the optical properties of ZnO nanowires
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Autor/a:
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Pohardy, Nicolas
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Otros autores:
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Güell, Frank |
Abstract:
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Tesina realitza en col.laboració amb la Facultat de Física. Departament d’Electrònica |
Abstract:
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ZnO nanowires are source of a great interest in the scientific community due to
numerous properties and the wide range of possible applications of this nanoscale
material. Influence of the ZnO NWs growth parameters such as growth temperature and
growth time on the NWs PL is studied. FESEM images correlated with PL results shows
that ZnO NWs growth is optimum for a temperature of 900 ˚C and a growth time of 60
min. PL of ZnO NWs grown on quartz substrate at room temperature show a band gap
emission from 375 to 380 nm depending of the NWs size and a defect band from 440 to
760 nm commonly with 3 picks at 505 nm (2.45 eV), 550 nm (2,25 eV) and 630 nm (1.96
eV). |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica -Nanotechnology -Photoluminescence -Nanowires -ZnO -PL -FESEM -VLS -Nanotecnologia -Fotoluminescència |
Derechos:
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Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Tipo de documento:
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Trabajo fin de máster |
Editor:
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Universitat Politècnica de Catalunya
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