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Citation: ZOU Xing-Quan, WU Ping, LI Qiang, XIAO Tan
. Synthesis and Characterization of the Amorphous SiO₂Nano-Lantern[J]. Acta Physico-Chimica Sinica, ;2007, 23(03): 322-326. doi: 10.3866/PKU.WHXB20070308 shu

Synthesis and Characterization of the Amorphous SiO₂Nano-Lantern

1.
(Department of Physics, Shantou University, Shantou 515063, Guangdong Province, P. R. China)

Received Date: 9 August 2006
Available Online: 7 March 2007

A Chinese lantern-like silicon oxide nanostructure (nano-lantern) was synthesized on the silicon substrate by thermal evaporation method. The nano-lantern was characterized by scanning electron microscope (SEM), high-resolution transmission electron microscope (HRTEM), energy-dispersive spectroscope (EDS), and selective area electron diffraction (SAED). The results showed that the nano-lantern had symmetrical structure, with one end connecting with the silicon wafer and the other end being a tin ball. The diameter of the nano-lantern was about 1.5-3.0 μm, arc nanowires distributed between the two ends had a diameter ranging from 70 nm to 150 nm. The catalyst tin ball was a single crystal surrounded by the amorphous silicon oxide nanowires. In addition, the growth mechanism of the silica nano-lantern was discussed and a growth model was proposed. The growing direction of the nanowires and the movement direction of the catalyst Sn ball were not in the same direction, for this reason, the nanowires grew in a bent fashion and formed the Chinese lantern-like silicon oxide nanostructure. The controllable synthesis of the Chinese lantern-like silicon oxide nanostructure might have potential applications in photoelectronics device field.
- Nano-lantern;Silicon oxide nanowire;Vapor-liquid-solid (VLS) growth mechanism
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沈阳化工大学材料科学与工程学院沈阳 110142

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Synthesis and Characterization of the Amorphous SiO₂Nano-Lantern