Luminescence of carbon nanotube bulbs

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• 作者：ChuanGang Li (1)
  KunLin Wang (1)
  JinQuan Wei (1)
  BingQing Wei (2)
  HongWei Zhu (2)
  ZhiCheng Wang (1)
  JianBin Luo (1)
  WenJin Liu (1)
  MingXin Zheng (1)
  DeHai Wu (1)
  
• 关键词：carbon nanotubes ; bulb ; electroluminescence
• 刊名：Chinese Science Bulletin
• 出版年：2007
• 出版时间：January 2007
• 年：2007
• 卷：52
• 期：1
• 页码：113-117
• 全文大小：3460KB
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• 作者单位：ChuanGang Li (1)
  KunLin Wang (1)
  JinQuan Wei (1)
  BingQing Wei (2)
  HongWei Zhu (2)
  ZhiCheng Wang (1)
  JianBin Luo (1)
  WenJin Liu (1)
  MingXin Zheng (1)
  DeHai Wu (1)
  
  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
  
• ISSN：1861-9541

文摘

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 (1400-300 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.