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Citation: QI Jun-Jie, YANG Ya, LIAO Qing-Liang, HUANG Yun-Hua, LIU Juan, ZHANG Yue. Fabrication and Characterization of In/ZnO-SiO_x Core-Shell Nanocable Heterostructures[J]. Acta Physico-Chimica Sinica, ;2009, 25(09): 1721-1724. doi: 10.3866/PKU.WHXB20090908 shu

Fabrication and Characterization of In/ZnO-SiO_x Core-Shell Nanocable Heterostructures

1.
Department of Materials Physics&Chemistry, University of Science and Technology Beijing, Beijing 100083, P. R. China

Received Date: 5 March 2009
Available Online: 10 July 2009

Indiumdoped ZnO-SiOx core-shell nanocable heterostructures were successfully fabricated by introducing In ions into the raw material via a simple thermal evaporation process. X-ray diffraction (XRD), transmission electron microscopy (TEM), and energy dispersive X-ray spectroscopy (EDS) were used to investigate the structure of the In/ZnO-SiOx core-shell fibers. Results indicated that the core zone of ZnO nanocables is single crystalline In/ZnO with a wurtzite structure and the shell zone is a SiOx amorphous layer. The nanocables have high aspect ratio of more than 100 with widths of 30-60 nm. The growth mechanismof the nanocable heterostructures is different fromthe commonly reported metal-seeded vapor-liquid-solid (VLS) mechanism. The synthesis of core-shell structures reveals the general potential of radial heterostructure growth for the development of nanowire-based devices.
- Nanostructure,
- In-doping,
- ZnO,
- Nanocable,
- 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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Fabrication and Characterization of In/ZnO-SiOx Core-Shell Nanocable Heterostructures

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通讯作者: 陈斌, bchen63@163.com

Fabrication and Characterization of In/ZnO-SiO_x Core-Shell Nanocable Heterostructures