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	Optical and electric properties of aligned-growing Ta/sub 2/O/sub 5/ nanorods
	Miao, W. ; Zhu, M.M. ; Li, Z.C. ; Zhang, Z.J.
	2010-10-12 ; 2010-10-12
关键词	Experimental/ field emission nanostructured materials permittivity photoluminescence tantalum compounds vacancies (crystal) vacuum deposition/ electric properties optical properties vertically aligned-growing nanorods Si (100) substrates thermal deposition strong photoluminescence oxygen vacancies dielectric constant cone-shaped morphology field emission field enhancement factor frequency 1 kHz to 10 MHz Ta/sub 2/O/sub 5/ Si/ A7865P Optical properties of other inorganic semiconductors and insulators (thin films/low-dimensional structures) A7720 Dielectric permittivity A7970 Field emission and field ionization A8115G Vacuum deposition A6170B Interstitials and vacancies A6146 Structure of solid clusters, nanoparticles, nanotubes and nanostructured materials A6865 Low-dimensional structures: growth, structure and nonelectronic properties A7855H Photoluminescence in other inorganic materials/ frequency 1.0E+03 to 1.0E+07 Hz/ Ta2O5/bin Ta2/bin O5/bin Ta/bin O/bin Si/sur Si/el
中文摘要	These vertically aligned Ta/sub 2/O/sub 5/ nanorods were deposited on Si (100) substrates by thermal deposition in a vacuum of the order of 10/sup -2/ Torr at about 600 degrees C. When excited by 514 nm Ar/sup +/ laser, they showed a strong photoluminescence at ~622 nm, which was attributed to the oxygen vacancies. In addition, their dielectric constant is ~20 in the frequency range from 1 kHz to 10 MHz, far larger than that of SiO/sub 2/ and Si/sub 3/N/sub 4/. Due to this cone-shaped morphology, the Ta/sub 2/O/sub 5/ nanorods exhibited a threshold field of ~8.5 V/ mu m in field emission and a field enhancement factor of 764 that are sufficiently high for field emission application.
语种	英语
出版者	Japan Institute of Metals ; Japan
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/78275]
专题	清华大学
推荐引用方式 GB/T 7714	Miao, W.,Zhu, M.M.,Li, Z.C.,et al. Optical and electric properties of aligned-growing Ta/sub 2/O/sub 5/ nanorods[J],2010, 2010.
APA	Miao, W.,Zhu, M.M.,Li, Z.C.,&Zhang, Z.J..(2010).Optical and electric properties of aligned-growing Ta/sub 2/O/sub 5/ nanorods..
MLA	Miao, W.,et al."Optical and electric properties of aligned-growing Ta/sub 2/O/sub 5/ nanorods".(2010).

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