Synthesis, structure, and photoluminescence of Zn2SnO4 single-crystal nanobelts and nanorings |
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Authors: | JX Wang HJ Yuan XQ Yan DF Liu Y Gao ZP Zhou L Song LF Liu XW Zhao XY Dou WY Zhou G Wang |
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Institution: | Institute of Physics, AOS Group, Graduate School of the Chinese Academy of Sciences, P.O. Box 603-65#, Beijing 100080, China |
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Abstract: | A large quantity of single-crystal Zn2SnO4 (ZTO) nanobelts is synthesized by using a thermal evaporation method. The lengths of the nanobelts are up to several hundreds of micrometers, and the average width and thickness are about 400 and 30 nm, respectively. Some ring-like nanobelts, called nanorings here, are also observed. The nanobelts are characterized in detail with scanning electron microscope, X-ray powder diffraction, transmission electron microscope, high-resolution transmission electron microscope and selected area electron diffraction. Possible growth mechanisms for the ZTO nanobelts and nanorings are proposed. In addition, the photoluminescence spectrum (PL) of the nanobelts at room temperature shows a stable broad blue-green emission around the 400-600 nm wavelengths with a maximum center at 490 nm. The strong PL emission of the nanobelts may find potential applications in nano-scale optoelectronic devices. |
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Keywords: | 68 37 Lp 76 67 2n 81 07 2b |
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