Deng, Zhengtao and Chen, Dong and Tang, Fangqiong and Ren, Jun and Muscat, Anthony J. (2009) Synthesis and purple-blue emission of antimony trioxide single-crystalline nanobelts with elliptical cross section. Nano Research, 2 (2). pp. 151-160. ISSN 1998-0124 (Print) 1998-0000 (Online)
Official URL: http://www.springerlink.com/content/8p864657204251...
Single-crystalline orthorhombic antimony trioxide (Sb2O3) nanobelts with unique elliptical cross sections and purple-blue photoluminescence have been synthesized. The uniform Sb2O3 nanobelts are 400–600 nm in width, 20–40 nm in thickness at the center and gradually become thinner to form sharp edges sub-5 nm in size, tens of micrometers in length, and with  as the preferential growth direction. Self-assembly of tens of nanobelts into three-dimensional (3-D) flower-like nanostructures has been observed. Analysis was performed by X-ray diffraction, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, high-resolution transmission electron microscopy, selected area electron diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, and photoluminescence spectroscopy. The Sb2O3 nanobelts display intense purple-blue photoluminescence centred at 425 nm (∼2.92 eV). The successful synthesis of nanobelts with elliptical cross sections may cast new light on the investigation of the property differences between nanobelts with rectangular cross sections and those with other cross section geometries. The Sb2O3 nanobelts can be used as effective purple-blue light emitters and may also be valuable for future nanodevice design.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||16 Apr 2010 05:44|
|Last Modified:||16 Apr 2010 05:44|
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