Terahertz characterization of carbon nanotube and graphene on-substrate thin films

Min Liang, Mingguang Tuo, Hao Xin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Single-walled carbon nanotube (SWNT) thin films with thicknesses on the order of 100's nanometers on substrates and graphene thin films on substrate are characterized via Terahertz time-domain spectroscopy. The thin film is treated as a surface boundary condition between the substrate and air. Using the uniform field approximation, the surface conductivities of these films are extracted. The SWNT results show consistent surface conductivities for samples on different substrates and with different film thicknesses. The measured graphene Terahertz conductivity is comparable to the values reported in literatures at DC and optical frequency. This characterization method has been successfully applied as a means to evaluate metallic content of SWNT samples to verify a metallic SWNT purification process using high power microwave irradiation.

Original languageEnglish (US)
Title of host publication2013 7th European Conference on Antennas and Propagation, EuCAP 2013
Pages705-706
Number of pages2
StatePublished - Aug 14 2013
Event2013 7th European Conference on Antennas and Propagation, EuCAP 2013 - Gothenburg, Sweden
Duration: Apr 8 2013Apr 12 2013

Publication series

Name2013 7th European Conference on Antennas and Propagation, EuCAP 2013

Other

Other2013 7th European Conference on Antennas and Propagation, EuCAP 2013
CountrySweden
CityGothenburg
Period4/8/134/12/13

Keywords

  • Purification
  • Single-walled carbon nanotube (SWNT)
  • TDS
  • Terahertz
  • graphene

ASJC Scopus subject areas

  • Computer Networks and Communications

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