Properties of the incandescent light emitted fromdouble-walled carbon nanotube filament
Wei Jin-Quan(韦进全)a), Sun Jia-Lin(孙家林)b)†, Wu De-Hai(吴德海)a), Guo Ji-Hua(郭继华)b), Luo Jian-Bin(骆建彬)a), and Wang Kun-Lin(王昆林)a)
a Key Laboratory for Advanced Manufacturing by Materials Processing Technology of Education Ministry and Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; b Key Laboratory of Atomic and Molecular Nanosciences of Education Ministry and Department of Physics, Tsinghua University, Beijing 100084, China
Abstract We have studied the radiation of a double-walled carbon nanotube (DWNT) filament with a length of 4.5 mm and a diameter of 10 $\mu$m by applying an electric current through the filament. The DWNT filament starts emitting incandescent light at voltage $U=6$ V. Emission spectra of the DWNT below temperature 1250 K can well be fitted to those of the blackbody radiation. The intensity of the incandescent light shows an exponential dependence on the voltage applied on the DWNT filaments. The resistance of the DWNT filaments is very stable at high temperatures between 900 and 1250 K during the emission of light in the experiments.
Received: 11 October 2005
Revised: 10 July 2006
Accepted manuscript online:
Fund: Project supported by the Key Grant Program of Chinese Ministry of Education (Grant No 306020) and National Center for Nanoscience and Technology, China.
Cite this article:
Wei Jin-Quan(韦进全), Sun Jia-Lin(孙家林), Wu De-Hai(吴德海), Guo Ji-Hua(郭继华), Luo Jian-Bin(骆建彬), and Wang Kun-Lin(王昆林) Properties of the incandescent light emitted fromdouble-walled carbon nanotube filament 2006 Chinese Physics 15 2731
Electronic structure of Yb/H－Si (111) interface Li Hong-Nian (李宏年), Wang Xiao-Xiong (王晓雄), He Shao-Long (何少龙), Zhang Han-Jie (张寒杰), Li Hai-Yang (李海洋), Bao Shi-Ning (鲍世宁). Chin. Phys. B, 2004, 13(11): 1941-1946.
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