Optical activation of Si nanowires using Er-doped, sol-gel derived silica

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Optical activation of Si nanowires (Si-NWs) using sol-gel derived Er-doped silica is investigated. Si-NWs of about 100 nm diameter were grown on Si substrates by the vapor-liquid-solid method using An catalysts and H-2 diluted SiCl4. Afterwards, Er-doped silica sol-gel solution was spin-coated, and annealed at 950degreesC in flowing N-2/O-2 environment. Such Er-doped silica/Si-NWs nanocomposite is found to combine the advantages of crystalline Si and silica to simultaneously achieve both high carrier-mediated excitation efficiency and high Er3+ luminescence efficiency while at the same time providing high areal density of Er3+ and easy current injection, indicating the possibility of developing sol-gel activated Si-NWs as a material platform for Si-based photonics. (C) 2005 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2005-01
Language
English
Article Type
Article
Keywords

MU-M; ENERGY-TRANSFER; POROUS SILICON; WAVE-GUIDE; ERBIUM; LUMINESCENCE; ELECTROLUMINESCENCE; NANOCRYSTALS; DEEXCITATION; EXCITATION

Citation

APPLIED PHYSICS LETTERS, v.86, no.5, pp.169 - 174

ISSN
0003-6951
DOI
10.1063/1.1857072
URI
http://hdl.handle.net/10203/9703
Appears in Collection
NT-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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