Dielectric response of aligned semiconducting single-wall nanotubes

被引：76

作者：

Fagan, J. A. ^{[1
]}

Simpson, J. R.

Landi, B. J.

Richter, L. J.

Mandelbaum, I.

Bajpai, V.

Ho, D. L.

Raffaelle, R.

Walker, A. R. Hight

Bauer, B. J.

Hobbie, E. K.

机构：

[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA

[2] Rochester Inst Technol, Nanopower Res Labs, Rochester, NY 14623 USA

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.98.147402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of the full intrinsic optical anisotropy of isolated single-wall carbon nanotubes (SWNTs). By combining absorption spectroscopy with transmission ellipsometry and polarization-dependent resonant Raman scattering, we obtain the real and imaginary parts of the SWNT permittivity from aligned semiconducting SWNTs dispersed in stretched polymer films. Our results are in agreement with theoretical predictions, highlighting the limited polarizability of excitons in a quasi-1D system.

引用

页数：4

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