Synthesis and Photoluminescence of SiOx Nanotubes  

作　　者：蒋海峰[1] 陈翌庆[1] 周庆涛[1] 苏勇[1] 张庶元[2] 肖海花[1] 

机构地区：[1]合肥工业大学材料科学与工程学院,合肥230009 [2]中国科技大学合肥微尺度物质科学国家实验室,合肥23002

出　　处：《Chinese Journal of Chemical Physics》2006年第6期511-514,共4页化学物理学报（英文）

基　　金：supported by the National Natural Science Foundation of China(No.20471019);the Natural Science Foundation of Anhui Provinces of China(No.050440904).

摘　　要：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 μm, 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. Thea the SiOs 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 nrn 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.

关 键 词：AMORPHOUS NANOTUBES PHOTOLUMINESCENCE 

分 类 号：O[理学]