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J. Korean Ceram. Soc. > Volume 45(3); 2008 > Article
Journal of the Korean Ceramic Society 2008;45(3): 142.
doi: https://doi.org/10.4191/kcers.2008.45.3.142
Self Growth of Silica Nanowires on a Si/SiO2 Substrate
Hann-Ah Jeong, Han-Kyu Seong, Heon-Jin Choi
School of Advanced Materials Science and Engineering, Yonsei University
ABSTRACT
The growth of amorphous silica nanowires by on-site feeding of silicon and oxygen is reported. The nanowires were grown on a nickel-coated oxidized silicon substrate without external silicon or oxygen sources. Transmission electron microscopy observation revealed that the nanowires, which have diameters of less than 50 nm and a length of several micrometers, were grown using a traditional vapor-liquid-solid mechanism. Blue photoluminescence was observed from these nanowires at room temperature. An approach to grow nanowires without external precursors may be useful when integrating nanowires into devices structures. This can benefit the fabrication of nanowire-based nanodevices.
Key words: Silica nanowires, VLS mechanism, Photoluminescence
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