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Título:
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Cathodoluminescence characterization of ZnO : Te microstructures obtained with ZnTe and TeO_2 doping precursors
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Autores:
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Iribarren, A. ;
Fernández Sánchez, Paloma ;
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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Academic Press Ltd- Elsevier Science Ltd, 2008-05
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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/restrictedAccess
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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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ZnTe- and TeO_2-doped ZnO nanostructures and microstructures were obtained by a vapour-solid process by sintering compacted ZnO powder mixed with each precursor. Cathodoluminescence (CL) measurements show that if TeO_2 is used, then the defect band, due mainly to O vacancies (V-O), tends to reduce and even disapear, which indicates that Te reacts with ZnO and passivates the O vacancies better than if ZnTe is used as a precursor. With both precursors, a CL peak at about 3.08-3.17 eV, which overlaps with that of ZnO at about 3.26 eV, indicates that ZnTe_xO_(1-x) forms.
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En línea:
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https://eprints.ucm.es/id/eprint/25819/1/PiquerasJ67.pdf
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