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 ZnO films grown by laser ablation with and without oxygen CVD
Please use this identifier to cite or link to this item http://hdl.handle.net/10773/6163

title: ZnO films grown by laser ablation with and without oxygen CVD
authors: Bentes, L.
Ayouchi, R.
Santos, C.
Schwarz, R.
Sanguino, P.
Conde, O.
Peres, M.
Monteiro, T.
Teodoro, O.
keywords: Pulsed laser deposition
Zinc oxide
X-ray analysis
issue date: Dec-2007
publisher: Elsevier
abstract: 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.
URI: http://hdl.handle.net/10773/6163
ISSN: 0749-6036
publisher version/DOI: dx.doi.org/10.1016/j.spmi.2007.04.049
source: Superlattices and Microstructures
appears in collectionsFIS - Artigos

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