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Helical nanostructures of SiOx synthesized through the heating of Co-coated substrates
Authors:Hyoun Woo Kim  Seung Hyun Shim
Affiliation:School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea
Abstract:This paper presents the use of the simple annealing technique at 1000 °C to produce the helical nanostructures of SiOx. We have employed the Co-coated Si substrates, with Co layer and Si substrate utilized as catalyst and Si source, respectively. Beside the ordinary straight nanowires, the helical nanowires such as nanosprings and nanorings were observed. The product was an amorphous structure of SiOx. We have discussed the possible growth mechanism. Photoluminescence spectrum of the SiOx nanostructures showed a blue emission at 428 nm and a green emission at 534 nm, respectively.
Keywords:61.46.+w   78.55.&minus  m   81.07.&minus  b
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