ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing

IMR OpenIR

	ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing
	X. Xiang; X. T. Zu; S. Zhu; Q. M. Wei; C. F. Zhang; K. Sun; L. M. Wang
	2006
发表期刊	Nanotechnology
ISSN	0957-4484
卷号	17 期号:10 页码:2636-2640
摘要	ZnO nanoparticles were fabricated in sapphire (alpha-Al2O3 single crystal) by Zn ion implantation (48 keV) at an ion fluence of 1x10(17) cm(-2) and subsequent thermal annealing in a flowing oxygen atmosphere. Transmission electron microscopy (TEM) analysis revealed that metallic Zn nanoparticles of 3-10 nm in dimensions formed in the as-implanted sample and that ZnO nanoparticles of 10-12 nm in dimensions formed after annealing at 600 degrees C. A broad absorption band, peaked at 280 nm, appeared in the as-implanted crystal, due to surface plasma resonance (SPR) absorption of metallic Zn nanoparticles. After annealing at 600 degrees C, ZnO nanoparticles resulted in an exciton absorption peak at 360 nm. The photoluminescence (PL) of the as-implanted sample was very weak when using a He-Cd 325 nm line as the excitation source. However, two emission peaks appeared in the PL spectrum of ZnO nanopraticles, i.e., one ultraviolet (UV) peak at 370 nm and the other a green peak at 500 nm. The emission at 500 nm is stronger and has potential applications in green/blue light-emitting devices.
部门归属	univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. univ michigan, dept nucl engn & radiol sci, ann arbor, mi 48109 usa.;zu, xt (reprint author), univ elect sci & technol china, dept appl phys, chengdu 610054, peoples r china;xiaotaozu@yahoo.com
关键词	Optical-properties Thermal-oxidation Silica Radiation Nanocrystals Nanowires Matrix Growth Sio2 Cu
URL	查看原文
WOS记录号	WOS:000238229100032
引用统计	被引频次：44[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/34590
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Xiang,X. T. Zu,S. Zhu,et al. ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing[J]. Nanotechnology,2006,17(10):2636-2640.
APA	X. Xiang.,X. T. Zu.,S. Zhu.,Q. M. Wei.,C. F. Zhang.,...&L. M. Wang.(2006).ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing.Nanotechnology,17(10),2636-2640.
MLA	X. Xiang,et al."ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing".Nanotechnology 17.10(2006):2636-2640.