Terahertz Spectroscopy of Single-Walled Carbon Nanotubes in a Polymer Film: Observation of Low-Frequency Phonons
| hal.structure.identifier | Department of Physics | |
| hal.structure.identifier | Center for Ultrafast Laser Applications | |
| dc.contributor.author | KUMAR, Sunil | |
| hal.structure.identifier | Department of Physics | |
| hal.structure.identifier | Center for Ultrafast Laser Applications | |
| dc.contributor.author | KAMARAJU, N. | |
| hal.structure.identifier | Department of Physics | |
| dc.contributor.author | KARTHIKEYAN, B. | |
| hal.structure.identifier | Centre de physique moléculaire optique et hertzienne [CPMOH] | |
| dc.contributor.author | TONDUSSON, Marc | |
| hal.structure.identifier | Centre de physique moléculaire optique et hertzienne [CPMOH] | |
| dc.contributor.author | FREYSZ, Eric | |
| hal.structure.identifier | Department of Physics | |
| hal.structure.identifier | Center for Ultrafast Laser Applications | |
| dc.contributor.author | SOOD, A. K. | |
| dc.date.created | 2010-04-06 | |
| dc.date.issued | 2010-07-29 | |
| dc.identifier.issn | 1932-7447 | |
| dc.description.abstractEn | We investigate the dielectric response of single-walled carbon nanotubes dispersed in poly(vinyl alcohol) matrix by using terahertz time domain spectroscopy. Frequency-dependent real and imaginary parts of the complex dielectric function are measured experimentally in the terahertz regime. The low-frequency phonons of carbon nanotubes, though predicted theoretically, are directly observed for the first time at frequencies 0.26, 0.60, and 0.85 THz. Further, a broad resonance is observed at 1.15 THz associated with the longitudinal acoustic mode of vibration of straight-chain segments of the long polymeric molecules in the film. The latter is observed at 1.24 THz for a pristine polymer film and has been used to derive the size of crystalline lamellae in the film. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.title.en | Terahertz Spectroscopy of Single-Walled Carbon Nanotubes in a Polymer Film: Observation of Low-Frequency Phonons | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/jp103105h | |
| bordeaux.journal | Journal of Physical Chemistry C | |
| bordeaux.page | 12446-12450 | |
| bordeaux.volume | 114 | |
| bordeaux.issue | 29 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00506063 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00506063v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Physical%20Chemistry%20C&rft.date=2010-07-29&rft.volume=114&rft.issue=29&rft.spage=12446-12450&rft.epage=12446-12450&rft.eissn=1932-7447&rft.issn=1932-7447&rft.au=KUMAR,%20Sunil&KAMARAJU,%20N.&KARTHIKEYAN,%20B.&TONDUSSON,%20Marc&FREYSZ,%20Eric&rft.genre=article |
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