Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10773/6163
Título: | ZnO films grown by laser ablation with and without oxygen CVD |
Autor: | Bentes, L. Ayouchi, R. Santos, C. Schwarz, R. Sanguino, P. Conde, O. Peres, M. Monteiro, T. Teodoro, O. |
Palavras-chave: | Pulsed laser deposition Zinc oxide X-ray analysis |
Data: | Dez-2007 |
Editora: | Elsevier |
Resumo: | In the present work we have studied the properties of zinc oxide (ZnO) thin films grown by laser ablation of ZnO targets under different substrate temperature and background oxygen conditions. The ZnO layers were deposited with a Pulsed Laser Deposition (PLD) system on pre-nitrided (0001) sapphire (Al2O3), using the base line of a Nd:YAG laser at 1064 nm. The films were characterized by different structural and optical methods, including X-ray diffraction (XRD), scanning electron microscopy (SEM), optical transmission spectroscopy, and steady-state photoluminescence (PL). XRD analysis with rocking curves and θ–2θ scans indicates preferential growth along the c-axis direction with a full width at half maximum (FWHM) smaller than 1.5∘. Low-temperature photoluminescence (PL) showed strong excitonic emission near 3.36 eV between 9 and 65 K. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/6163 |
DOI: | 10.1016/j.spmi.2007.04.049 |
ISSN: | 0749-6036 |
Aparece nas coleções: | DFis - Artigos |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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SM.pdf | versão pdf do editor | 507.78 kB | Adobe PDF |
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