Effect of Fullerene Encapsulation on Radial Vibrational Breathing-Mode Frequencies of Single-Wall Carbon Nanotubes | Zendy

SoonKil Joung | Zendy; Toshiya Okazaki | Zendy; Naoki Kishi | Zendy; Susumu Okada | Zendy; Shunji Bandow | Zendy; Sumio Iijima | Zendy

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Effect of Fullerene Encapsulation on Radial Vibrational Breathing-Mode Frequencies of Single-Wall Carbon Nanotubes

Author(s) -

SoonKil Joung,

Toshiya Okazaki,

Naoki Kishi,

Susumu Okada,

Shunji Bandow,

Sumio Iijima

Publication year - 2009

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.103.027403

Subject(s) - fullerene , carbon nanotube , materials science , molecular physics , molecular vibration , atomic physics , physics , nanotechnology , condensed matter physics , raman spectroscopy , optics , quantum mechanics

We investigate the effects of C60 fullerene encapsulation on the radial breathing mode (RBM) of semiconducting single-wall carbon nanotubes (SWCNTs) under tunable laser excitations. The changes in the RBM frequencies after C60 insertions show characteristic behavior; higher frequency shifts are observed in the case of smaller diameter tubes (dt<~1.32 nm) and lower frequency shifts, in the case of larger diameter tubes (dt>~1.32 nm). The observed frequency shifts are satisfactorily explained by the diameter-dependent interaction between the encapsulated C60 and the host SWCNTs

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