Exciton energy transfer in pairs of single-walled carbon nanotubes

Huihong Qian, Carsten Georgi, Neil Anderson, Alexander A. Greeny, Mark C. Hersam, Lukas Novotny, Achim Hartschuh

Research output: Contribution to journalArticlepeer-review

107 Scopus citations

Abstract

We studied the exciton energy transfer in pairs of semiconducting nanotubes using high-resolution optical microscopy and spectroscopy on the nanoscale. Photoluminescence from large band gap nanotubes within bundles is observed with spatially varying intensities due to distance-dependent internanotube transfer. The range of efficient energy transfer is found to be limited to a few nanometers because of competing fast nonradiative relaxation responsible for low photoluminescence quantum yield.

Original languageEnglish (US)
Pages (from-to)1363-1367
Number of pages5
JournalNano Letters
Volume8
Issue number5
DOIs
StatePublished - May 2008

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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