Título:
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Structural and cathodoluminescence assessment of V_2O_5 nanowires and nanotips grown by thermal deposition
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Autores:
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Díaz-Guerra Viejo, Carlos ;
Piqueras de Noriega, Javier
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Tipo de documento:
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texto impreso
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Editorial:
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American Institute of Physics, 2007-10-15
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física de materiales
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Tipo = Artículo
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Resumen:
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V_2O_5 nanostructures have been grown on 4H-SiC and Si substrates by a thermal deposition method without a catalyst. High aspect ratio nanowires with rectangular cross sections were grown on 4H-SiC. High-resolution transmission electron microscopy observations and cathodoluminescence (CL) spectroscopy measurements reveal the high crystal quality of the grown nanowires. Deposition on Si substrates leads to the growth of V_2O_5 platelets or rod-shaped crystals ending in arrays of parallel sharp nanotips with apex radius in the 50 nm range. A CL emission band observed centered at about 1.70 eV in spectra from these nanostructures is tentatively attributed to defect centers involving oxygen vacancies.
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En línea:
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https://eprints.ucm.es/id/eprint/25891/1/PiquerasJ75libre.pdf
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