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题名: Efficiently producing single-walled carbon nanotube rings and investigation of their field emission properties
作者: Song L (Song Li);  Ci LJ (Ci Lijie);  Jin CH (Jin Chuanhong);  Tan PH (Tan Pingheng);  Sun LF (Sun Lianfeng);  Ma WJ (Ma Wenjun);  Liu LF (Liu Lifeng);  Liu DF (Liu Dongfang);  Zhang ZX (Zhang Zengxing);  Xiang YJ (Xiang Yanjuan);  Luo SD (Luo Shudong);  Zhao XW (Zhao Xiaowei);  Shen J (Shen Jun);  Zhou JJ (Zhou Jianjun);  Zhou WY (Zhou Weiya);  Xie SS (Xie Sishen)
发表日期: 2006
摘要: Single-walled carbon nanotube (SWNT) rings with a diameter of about 100 nm have been prepared by thermally decomposing hydrocarbon in a floating catalyst system. These rings appeared to consist mostly of SWNT toroids. High resolution transmission electron microscopy showed that these rings were composed of tens of SWNTs with a tightly packed arrangement. The production of SWNT rings was improved through optimizing various growth parameters, such as growth temperature, sublimation temperature of the catalyst, different gas flows and different catalyst components. The growth mechanism of the SWNT rings is discussed. In the field emission measurements we found that field emission from a halved ring is better than that from a whole SWNT ring, which contributed to the better emission from two opened ends of the nanotubes of the halved SWNT ring.
KOS主题词: Electronic properties;  Development;  Hydrocarbons;  Temperature
刊名: NANOTECHNOLOGY
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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Song L (Song Li); Ci LJ (Ci Lijie); Jin CH (Jin Chuanhong); Tan PH (Tan Pingheng); Sun LF (Sun Lianfeng); Ma WJ (Ma Wenjun); Liu LF (Liu Lifeng); Liu DF (Liu Dongfang); Zhang ZX (Zhang Zengxing); Xiang YJ (Xiang Yanjuan); Luo SD (Luo Shudong); Zhao XW (Zhao Xiaowei); Shen J (Shen Jun); Zhou JJ (Zhou Jianjun); Zhou WY (Zhou Weiya); Xie SS (Xie Sishen) .Efficiently producing single-walled carbon nanotube rings and investigation of their field emission properties ,NANOTECHNOLOGY,2006,17(9):2355-2361
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