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 journalArticle

105 Citations (Scopus)


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
Pages (from-to)1363-1367
Number of pages5
JournalNano letters
Issue number5
Publication statusPublished - May 2008

ASJC Scopus subject areas

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

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  • Cite this

    Qian, H., Georgi, C., Anderson, N., Greeny, A. A., Hersam, M. C., Novotny, L., & Hartschuh, A. (2008). Exciton energy transfer in pairs of single-walled carbon nanotubes. Nano letters, 8(5), 1363-1367. https://doi.org/10.1021/nl080048r