Hierarchical ZnO/Bi2O3 nanostructures: synthesis, characterization, and electron-beam modification |
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| Authors: | Bo Ling Xiao Wei Sun Yi Qiang Shen Zhi Li Dong |
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| Institution: | 1. School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
2. School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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| Abstract: | Two types of ZnO/Bi2O3 nanonecklace heterostructures were fabricated using the vapor-phase transport (VPT) method for the first time. These hierarchical
structures were well characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and transmission
electron microscopy (TEM) with energy dispersive spectroscopy (EDS) attached. The growth mechanism of the novel structures
were proposed based on these characterizations. Electron-beam irradiation was found to be a powerful and controllable tool
in further tailoring such ZnO/Bi2O3 nanonecklace heterostructures. In addition, photoluminescence (PL) emission from the hierarchical nanostructures showed enhancement
comparing to the pure Bi2O3 powder. |
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