Journal
NANO LETTERS
Volume 8, Issue 11, Pages 3936-3941Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl802423w
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Funding
- NSF
- U.S. Department of Energy [DE-AC02-05CH11231]
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Three-pulse photon echo peak shift measurements were performed on semiconducting single-walled carbon nanotubes embedded in polymer matrix at room temperature. Simultaneous modeling of the peak shift data in the limit of zero-intensity and the linear absorption spectrum enable us to extract an intrinsic homogeneous line width of 178 cm(-1), an inhomogeneous width of 698 cm(-1), and a Huang-Rhys factor of 0.04 for the radial breathing mode vibration. The peak shift data when combined with two-pulse photon echo and pump-probe measurements allows us to determine a pure exciton dephasing time scale of 78 fs at room temperature.
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