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Synthesis and Photoluminescence of SiOx Nanotubes
Hai-feng Jiang ,Yi-qing Chen* ,Qing-tao Zhou ,Yong Su ,Shu-yuan Zhang ,Hai-hua Xiao
Author NameAffiliation
Hai-feng Jiang Department of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 
Yi-qing Chen* Department of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 
Qing-tao Zhou Department of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 
Yong Su Department of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 
Shu-yuan Zhang Hefei National Laboratory for Physical Science at the Microscale, University of Science and Technology of China, Hefei 230026, China 
Hai-hua Xiao Department of Material Science and Engineering, Hefei University of Technology, Hefei 230009, China; 
Abstract:
Amorphous SiOx nanotubes with homogeneous diameters were fabricated in large-scale on silicon substrate by thermal evaporation method, with liquid gallium as medium. The average diameter of tubes is about 80 nm and the length is more than 10 1m, with small ratio between the inner and outer diameter of the tube. The silicon element in the substrate and the residual oxygen element in reaction chamber were first dissolved into liquid Ga. Then the SiOx precipitated from the surface of gallium droplet, forming the nanotube structure with Ga droplet being the center. The room temperature photoluminescence measurements under excitation at 260 nm show that the SiOx nanotubes has a strong blue emission at 453 nm with two shoulders at 410 and 480 nm respectively, which may be related to oxygen defects. The preparation method improved the traditional complicated method and also provided a new way to fabricate SiOx nanotubes in large quantity.
Key words:  Amorphous, Nanotubes, Photoluminescence
FundProject:supported by the National Natural Science Foundation of China (No.20471019), and the Nat ural Science Foundation of Anhui Provinces of China (No.050440904).
SiOx纳米管的制备及其发光特性
蒋海峰 ,陈翌庆 ,周庆涛 ,苏勇 ,张庶元 ,肖海花
摘要:
以液态金属镓为媒介,利用热蒸发法合成大量非晶SiOx纳米 管,这些纳米管管径均匀分布,平均约80 nm,长度大于10 1m, 且管内外径比例较小. 分析发现,在实验过程中,熔入金属镓液滴 中的硅元素和氧元素结合并从液滴的表面饱和析出,形成以镓为中 心的非晶SiOx纳米管状结构. 在室温中,利用260 nm的激发光源激 发SiOx纳米管,发现在蓝光波段附近发出强而稳定的PL谱线,这可 能与样品中的氧缺陷和空位有关.
关键词:  非晶,SiOx,纳米管,光致发光
DOI:10.1360/cjcp2006.19(6).511.4
分类号: