Doping-free carbon nanotube optoelectronic devices

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• 作者：Sheng Wang (1)
  ZhiYong Zhang (1)
  LianMao Peng (1)
  
• 关键词：carbon nanotube ; diode ; photodetector ; LED ; solar cell ; doping ; free
• 刊名：Chinese Science Bulletin
• 出版年：2012
• 出版时间：January 2012
• 年：2012
• 卷：57
• 期：2-3
• 页码：149-156
• 全文大小：860KB
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• 作者单位：Sheng Wang (1)
  ZhiYong Zhang (1)
  LianMao Peng (1)
  
  1. Key Laboratory for the Physics and Chemistry of Nanodevices, Department of Electronics, Peking University, Beijing, 100871, China
  
• ISSN：1861-9541

文摘

Semiconducting carbon nanotubes (CNTs) possess outstanding electrical and optical properties because of their special one-dimensional (1D) structure. CNTs are direct bandgap materials, which makes them ideal for use in optoelectronic devices, e.g. light emitters and light detectors. Excitons determine their light absorption and light emission processes due to the strong Coulomb interactions between electrons and holes in CNTs. In this paper, we review recent progress in CNT photodetectors, photovoltaic devices and light emitters. In particular, we focus on the doping-free CNT optoelectronic devices developed by our group in recent years.