| Luminescence of carbon nanotube bulbs |
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| 作者姓名： | LI ChuanGang WANG KunLin WEI JinQuan WEI BingQing ZHU HongWei WANG ZhiCheng LUO JianBin LIU WenJin ZHENG MingXin WU DeHai |
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| 作者单位： | [1]Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China; [2]Department of Electrical ＆ Computer Engineering and Center for Computation ＆ Technology, Louisiana State University, Baton Rouge, LA 70803, USA |
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| 基金项目： | Supported by the National Center for Nanoscience and Technology, China |
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| 摘 要： | Carbon nanotube (CNT) bulbs made of decimeter-scale double-walled carbon nanotube (DWCNT) strands and films were fabricated and their luminescence properties, including the lighting efficiency, voltage-current relation and thermal stability were investigated. The results show that the DWCNT bulb has a comparable spectrum of visible light with tungsten bulb and its average efficiency is 40% higher than that of a tungsten filament at the same temperature (1400―2300 K). The nanotube filaments show both resistance and thermal stability over a large temperature region. No obvious damage was found for a nanotube bulb illuminating at 2300 K for more than 24 hours in vacuum.
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| 关 键 词： | 碳纳米管 灯管 发光性 电子产品 |
| 收稿时间： | 7 March 2006 |
| 修稿时间： | 2006-03-072006-04-03 |
Luminescence of carbon nanotube bulbs |
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| LI ChuanGang WANG KunLin WEI JinQuan WEI BingQing ZHU HongWei WANG ZhiCheng LUO JianBin LIU WenJin ZHENG MingXin WU DeHai.Luminescence of carbon nanotube bulbs[J].Chinese Science Bulletin,2007,52(1):113-117. |
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| Authors: | Li ChuanGang Wang KunLin Wei JinQuan Wei BingQing Zhu HongWei Wang ZhiCheng Luo JianBin Liu WenJin Zheng MingXin Wu DeHai |
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| Institution: | (1) Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China;(2) Department of Electrical & Computer Engineering and Center for Computation & Technology, Louisiana State University, Baton Rouge, LA 70803, USA |
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| Abstract: | Carbon nanotube (CNT) bulbs made of decimeter-scale double-walled carbon nanotube (DWCNT) strands and films were fabricated
and their luminescence properties, including the lighting efficiency, voltage-current relation and thermal stability were
investigated. The results show that the DWCNT bulb has a comparable spectrum of visible light with tungsten bulb and its average
efficiency is 40% higher than that of a tungsten filament at the same temperature (1400–2300 K). The nanotube filaments show
both resistance and thermal stability over a large temperature region. No obvious damage was found for a nanotube bulb illuminating
at 2300 K for more than 24 hours in vacuum.
Supported by the National Center for Nanoscience and Technology, China |
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| Keywords: | carbon nanotubes bulb electroluminescence |
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