Single crystalline β-Ga2O3 nanowires synthesized by thermal oxidation of GaSe layer

被引:26
作者
Filippo, Emanuela [1 ]
Siciliano, Maria [1 ]
Genga, Alessandra [1 ]
Micocci, Gioacchino [1 ]
Tepore, Antonio [1 ]
Siciliano, Tiziana [1 ]
机构
[1] Univ Salento 1, Dept Mat Sci, I-73100 Lecce, Italy
关键词
Nanostructures; Oxides; Crystal growth; Vapour deposition; Electron microscopy; PHOTOLUMINESCENCE; GA2O3; NANOSTRUCTURES; NANORODS; GROWTH;
D O I
10.1016/j.materresbull.2012.08.083
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
beta-Ga2O3 nanowires were grown by thermal oxidation of GaSe single crystal surface under a mixture of argon-air flow, without the presence of a catalyst or foreign substrate. The nanowires were obtained after annealing GaSe surface at different temperatures (720 degrees C, 850 degrees C and 930 degrees C) for 5 h and they were characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, transmission electron microscopy and selected area diffraction pattern. The lengths of the nanowires varied in the range 50-180 nm, while the typical diameters of the nanowires were in the range 60-90 nm. A possible mechanism has been proposed in order to explain the growth of oxide nanowires. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1741 / 1744
页数:4
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