Electrical and Optical Properties of Ultra-small Carbon Nanotubes Arrayed in Channels of Zeolite Single Crystals

Zi Kang Tang*, Zhao Ming Li, Irene Ling Li, Xixiang Zhang, Ning Wang, Jiannong Wang, Ping Sheng

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

0.4 nm-sized single-walled carbon nanotubes (SWNTs) were produced by means of pyrolysing hydrocarbon molecules in 1 nm-sized channels of AlPO 4-5 (AFI) single crystals. These small SWNTs are highly aligned and uniform in size. They behave as a good polarizer, having strong absorption for the light polarized parallel to the tube direction, and nearly transparent for the light polarized in perpendicular direction. The absorption bands are assigned to the dipole transitions between the van-Hove singularities. Resonant Raman scattering measurement confirmed these van-Hove singularity structures. Investigation of the magnetic and transport properties of these SWNTs revealed that at temperatures below 20 K, the 0.4 nm tubes exhibit superconducting behavior manifest as an anisotropic Meissner effect, with a superconducting gap and fluctuation supercurrent.

Original languageEnglish (US)
Pages (from-to)2066-2069
Number of pages4
JournalMaterials Transactions
Volume44
Issue number10
DOIs
StatePublished - Jan 1 2003

Keywords

  • Aligned
  • Optical properties
  • Single-walled nanotubes
  • Transport properties
  • Ultra-small
  • Zeolite

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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