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Synthesis and Purple-Blue Emission of Antimony Trioxide Single-Crystalline Nanobelts with Elliptical Cross Section 被引量:3

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摘要 Single-crystalline orthorhombic antimony trioxide(Sb_(2)O_(3))nanobelts with unique elliptical cross sections and purple-blue photoluminescence have been synthesized.The uniform Sb2O3 nanobelts are 400600 nm in width,2040 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[001]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 Sb_(2)O_(3) 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.
出处 《Nano Research》 SCIE EI CSCD 2009年第2期151-160,共10页 纳米研究(英文版)
基金 We are grateful to Fee Li Lie at the University of Arizona for help with the XPS characterization and for financial support from the National Natural Science Foundation of China(Nos.60736001,60572031,and 20571080) Science Foundation Arizona(Strategic Research Group Program).
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