In situ synthesis of semiconducting single-walled carbon nanotubes by modified arc discharging method

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• 作者：Tingkai Zhao ; Xianglin Ji ; Wenbo Jin ; Wenbo Yang ; Xing Zhao ; Alei Dang…
• 刊名：Applied Physics A
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：123
• 期：2
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Condensed Matter Physics; Optical and Electronic Materials; Nanotechnology; Characterization and Evaluation of Materials; Surfaces and Interfaces, Thin Films; Operating Procedures, Materials Treatment
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-0630
• 卷排序：123

文摘

Semiconducting single-walled carbon nanotubes (s-SWCNTs) were in situ synthesized by a temperature-controlled arc discharging furnace with DC electric field using Co–Ni alloy powder as catalyst in helium gas. The microstructures of s-SWCNTs were characterized using high-resolution transmission electron microscopy, electron diffraction, and Raman spectrometry apparatus. The experimental results indicated that the best voltage value in DC electric field is 54 V, and the environmental temperature of the reaction chamber is 600 °C. The mean diameter of s-SWCNTs was estimated about 1.3 nm. The chiral vector (n, m) of s-SWCNTs was calculated to be (10, 10) type according to the electron diffraction patterns.