Direct growth of semiconducting single-walled carbon nanotube array

  • Hong Guo
  • , Zhang Bo
  • , Peng Banghua
  • , Zhang Jin
  • , Mook Choi Won
  • , Jae Young Choi
  • , Min Kim Jong
  • , Liu Zhongfan

Research output: Contribution to journalArticlepeer-review

143 Scopus citations

Abstract

(Figure Presented) By introducing the UV beam into our homemade chemical vapor deposition system, we had obtained a well aligned SWNT array on an ST-cut quartz substrate. After transfer onto a SiO2/Si substrate, the SWNT array was detected by Raman spectroscopy and electrical measurement, which showed that over 95% of the SWNTs were semiconducting ones. It is proposed that the selection process took place at the very beginning of the SWNT formation rather than destroying the metallic SWNTs after growth. This approach has solved one of the most important problems in SWNT application.

Original languageEnglish
Pages (from-to)14642-14643
Number of pages2
JournalJournal of the American Chemical Society
Volume131
Issue number41
DOIs
StatePublished - 21 Oct 2009
Externally publishedYes

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