Structural and Luminescence Properties of Highly Crystalline ZnO Nanoparticles Prepared by Sol--Gel Method
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概要
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ZnO nanoparticles were synthesized using sol--gel method. The structural and optical properties were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high resolution TEM (HRTEM), Raman spectroscopy, and photoluminescence (PL). XRD analysis demonstrates that the nanoparticles have the hexagonal wurtzite structure and the particle size is increased with annealing temperature. The average size of the nanoparticles was determined by SEM as well as XRD data and found to be {\sim}50 nm after annealing at 800 °C. A sharp, strong and dominant UV emission with a suppressed green emission has been observed at 300 and 10 K, indicating the good optical properties of ZnO nanoparticles. The 10 K UV band is dominated by a neutral-donor bound exciton, and the surface-related SX emission at 3.31 eV is evidenced.
- 2012-04-25
著者
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GELLOZ Bernard
Department of Electrical and Electronic Engineering, Faculty of Technology, Tokyo University of Agri
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Koshida Nobuyoshi
Graduate School Of Eng. Tokyo Univ. Of A&t
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Elhouichet Habib
Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs Applications, Centre National de Recherches en Sciences des Matériaux, B.P. 95 Hammam-Lif, 2050, Tunisia
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Bousslama Wiem
Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs Applications, Centre National de Recherches en Sciences des Matériaux, B.P. 95 Hammam-Lif, 2050, Tunisia
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Sieber Brigitte
UMET, UMR CNRS 8207, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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Addad Ahmed
UMET, UMR CNRS 8207, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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Moreau Myriam
LASIR UMR CNRS 8516, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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Férid Mokhtar
Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs Applications, Centre National de Recherches en Sciences des Matériaux, B.P. 95 Hammam-Lif, 2050, Tunisia
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Addad Ahmed
UMET, UMR CNRS 8207, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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Moreau Myriam
LASIR UMR CNRS 8516, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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Bousslama Wiem
Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs Applications, Centre National de Recherches en Sciences des Matériaux, B.P. 95 Hammam-Lif, 2050, Tunisia
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Gelloz Bernard
Department of Applied Physics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
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Sieber Brigitte
UMET, UMR CNRS 8207, Université Lille 1, 59655 Villeneuve d'Ascq Cédex, France
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