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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Published in | Physical review letters Vol. 91; no. 8; p. 085501 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
22.08.2003
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Online Access | Get more information |
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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. |
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ISSN: | 0031-9007 1079-7114 |
DOI: | 10.1103/physrevlett.91.085501 |