In situ raman measurements of suspended individual single-walled carbon nanotubes under strain

Sang Wook Lee, Goo Hwan Jeong, Eleanor E.B. Campbell

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

We present a technique for in situ Raman measurements of suspended individual single-walled carbon nanotubes (SWNTs) under strain. We observe a strong change in the radial breathing mode intensity with increasing strain as the nanotube moves out of (or into) resonance, and for strain greater than ∼2%, there is a clear irreversible upshift in the G-mode frequencies accompanied by an increase in intensity of a broad peak at a position associated with the D mode. For lower strain, the G-mode peaks (A1, E 1, and E2) do not change significantly in position but change in relative intensity.

Original languageEnglish
Pages (from-to)2590-2595
Number of pages6
JournalNano Letters
Volume7
Issue number9
DOIs
StatePublished - Sep 2007

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