One-step synthesis of pure Cu nanowire/carbon nanotube coaxial nanocables with different structures by arc discharge |
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| Authors: | Jijun Ding Xingbin Yan Beng Kang Tay Qunji Xue |
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| Institution: | aState Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China;bSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, Singapore |
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| Abstract: | Pure Cu nanowire/carbon nanotube (Cu@C) coaxial nanocables are one-step fabricated by arc discharge. The microstructure and morphology of the Cu@C nanocables are investigated via X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM). XRD results reveal that the copper carbide nano-crystals were formed in the nanocables and it plays an important role in the growth of the Cu@C nanocables. As-prepared Cu@C nanocables exhibit three different structures, including well-filled Cu@C nanocables, symmetrically trifurcate Cu@C nanocables, and twice capsulated Cu@C nanocables. The fabrication of Cu@C nanocables with different structures offers more opportunities for the development of nanoelectronic devices. The formation mechanisms of Cu@C nanocables with different structures are discussed as well. |
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| Keywords: | A Nanostructures B Plasma deposition C X-ray diffraction D Microstructures |
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