Luminescence properties of mechanically milled and laser irradiated ZnO

The effect of mechanical milling on the luminescence properties of ZnO microcrystalline samples has been studied by means of cathodoluminescence in a scanning electron microscope. The samples consisted of pressed pellets of commercially available ZnO powder which were ball milled to investigate the...

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Detalhes bibliográficos
Autores: Radoi, R., Fernández Sánchez, Paloma, Piqueras De Noriega, Francisco Javier, Wiggins, M. S., Solís, J.
Formato: artículo
Fecha de publicación:2003
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51155
Acesso em linha:https://hdl.handle.net/20.500.14352/51155
Access Level:acceso abierto
Palavra-chave:538.9
Thin-Films
Zinc-Oxide
Cathodoluminescence
Photoluminescence
Ceramics
Mechanisms
Gan
Física de materiales
Descrição
Resumo:The effect of mechanical milling on the luminescence properties of ZnO microcrystalline samples has been studied by means of cathodoluminescence in a scanning electron microscope. The samples consisted of pressed pellets of commercially available ZnO powder which were ball milled to investigate the possibility of nanocrystalline ZnO formation. Changes observed in the relative intensities of the characteristic ultraviolet and green band of ZnO are discussed in terms of defects generated during milling. The effect of nano- and picosecond pulsed laser irradiation on the particle size and luminescence of the milled samples has been also investigated.