Specific Raman signatures of a dimetallofullerene peapod

We report on the Raman spectroscopy of a dimetallofullerene peapod, (La(2)@C(80))(m)@SWNT. Drastic changes are observed with respect to pristine nanotubes. A sharp intense line at 142 cm(-1) is interpreted as a signature of polymerization of the encapsulated metallofullerenes. Additional strong sign...

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Bibliographic Details
Published in:Physical review letters 2003-08, Vol.91 (8), p.085501-085501, Article 085501
Main Authors: Débarre, A, Jaffiol, R, Julien, C, Nutarelli, D, Richard, A, Tchénio, P
Format: Article
Language:English
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Summary:We report on the Raman spectroscopy of a dimetallofullerene peapod, (La(2)@C(80))(m)@SWNT. Drastic changes are observed with respect to pristine nanotubes. A sharp intense line at 142 cm(-1) is interpreted as a signature of polymerization of the encapsulated metallofullerenes. Additional strong signatures appear at about 400, 520, and 640 cm(-1), respectively. Their intensity suggests the existence of an enhancement effect. The stiffening and the up-shift of the G-band modes appear to imply that a charge transfer process between the nanotube and the peas occurs.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.91.085501