Optical Absorption and Thermal Transport of Individual Suspended Carbon Nanotube Bundles

被引：66

作者：

Hsu, I-Kai ^{[2
]}

Pettes, Michael T. ^{[3
,4
]}

Bushmaker, Adam ^{[1
]}

Aykol, Mehmet ^{[1
]}

Shi, Li ^{[3
,4
]}

Cronin, Stephen B. ^{[1
]}

机构：

[1] Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA

[2] Univ So Calif, Dept Mat Sci, Los Angeles, CA 90089 USA

[3] Univ Texas Austin, Texas Mat Inst, Dept Mech Engn, Austin, TX 78712 USA

[4] Univ Texas Austin, Texas Mat Inst, Ctr Nano & Mol Sci & Technol, Austin, TX 78712 USA

来源：

NANO LETTERS | 2009年 / 9卷 / 02期

关键词：

RAMAN-SCATTERING; CONDUCTIVITY; TEMPERATURE; CONDUCTANCE; GRAPHENE; WIRES;

D O I：

10.1021/nl802737q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A focused laser beam is used to heat individual single-walled carbon nanotube bundles bridging two suspended microthermometers. By measurement of the temperature rise of the two thermometers, the optical absorption of 7.4-10.3 nm diameter bundles is found to be between 0.03 and 0.44% of the incident photons in the 0.4 mu m diameter laser spot. The thermal conductance of the bundle is obtained with the additional measurement of the temperature rise of the nanotubes in the laser spot from shifts in the Raman G band frequency. According to the nanotube bundle diameter determined by transmission electron microscopy, the thermal conductivity is obtained.

引用

页码：590 / 594

页数：5

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