TY - JOUR
T1 - Temperature dependence of Raman spectra in single-walled carbon nanotube rings
AU - Song, Li
AU - Ma, Wenjun
AU - Ren, Yan
AU - Zhou, Weiya
AU - Xie, Sishen
AU - Tan, Pingheng
AU - Sun, Lianfeng
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2008
Y1 - 2008
N2 - The temperature-dependent Raman frequency shift in single-walled carbon nanotube (SWCNT) rings in the range of 80-550 K is investigated. We observe that the frequency decreases with increasing temperature for all Raman peaks of the nanotube rings. Furthermore, compared to the nanotubes with linear structure, the temperature coefficients of the radial breathing mode and G-mode frequencies of the nanotube rings are much smaller, which means the nanotube rings have more stable thermal ability. We attribute the better thermal stability to the high bending strain energy along the nanotube rings induced by the sidewall curvature. © 2008 American Institute of Physics.
AB - The temperature-dependent Raman frequency shift in single-walled carbon nanotube (SWCNT) rings in the range of 80-550 K is investigated. We observe that the frequency decreases with increasing temperature for all Raman peaks of the nanotube rings. Furthermore, compared to the nanotubes with linear structure, the temperature coefficients of the radial breathing mode and G-mode frequencies of the nanotube rings are much smaller, which means the nanotube rings have more stable thermal ability. We attribute the better thermal stability to the high bending strain energy along the nanotube rings induced by the sidewall curvature. © 2008 American Institute of Physics.
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U2 - 10.1063/1.2891870
DO - 10.1063/1.2891870
M3 - RGC 21 - Publication in refereed journal
SN - 0003-6951
VL - 92
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 12
M1 - 121905
ER -