Influence of the precursors in the morphology, structure, vibrational order and optical gap of nanostructured ZnO



Título del documento: Influence of the precursors in the morphology, structure, vibrational order and optical gap of nanostructured ZnO
Revista: Revista mexicana de física
Base de datos: PERIÓDICA
Número de sistema: 000378134
ISSN: 0035-001X
Autores: 1
1
1
1
Instituciones: 1Universidad Nacional de Colombia, Departamento de Física y Química, Bogotá. Colombia
Año:
Periodo: Jul-Ago
Volumen: 60
Número: 4
Paginación: 296-300
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Analítico, teórico
Resumen en inglés The synthesis of ZnO by reaction in solid state from two precursor salts (zinc acetate and zinc sulfate), presented significant differences concerning morphology, structure, vibrational order and optical gap. As well as covering in the size of the compounds, a homogeneous distribution of nanoparticles of 21±3 nm and microstars of 1.03±0.19 μm respectively. The ZnO showed a structural phase with a vibrational state of the hexagonal type (wurtzite). The variation in the morphology due to the precursor is attributed to the disorder within of lattice, which contributes to vibrational changes and is correlated to the degrees of freedom of molecules. Measurements of UV-Vis of nanoparticles displayed a band gap (Eg) lower than the one reported for the bulk material
Disciplinas: Física y astronomía
Palabras clave: Física de materia condensada,
Optica,
Propiedades ópticas,
Nanorods,
Sistemas nanocristalinos,
Difracción de rayos X
Keyword: Physics and astronomy,
Condensed matter physics,
Optics,
Optical properties,
Nanorods,
Nanocrystalline systems,
X-ray diffraction
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