Exciton effects of optical transitions in single-wall carbon nanotubes

被引：147

作者：

Ichida, M ^{[1
]}

Mizuno, S

Tani, K

Saito, Y

Nakamura, A

机构：

[1] Nagoya Univ, Ctr Integrated Res Sci & Engn, Nagoya, Aichi 4648603, Japan

[2] Nagoya Univ, Dept Crystalline Mat Sci, Nagoya, Aichi 4648603, Japan

[3] Mie Univ, Dept Elect & Elect Engn, Tsu, Mie 5148507, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1999年 / 68卷 / 10期

关键词：

single-wall carbon nanotube; optical absorption; exciton effects;

D O I：

10.1143/JPSJ.68.3131

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Absorption spectra have been measured in the near-infrared region for a thin-film sample of single-wall carbon nanotubes of 1.2-1.5 nm diameter. Two absorption peaks are observed at 0.7 and 1.2 eV. The observed spectrum has been compared with the calculation based on the tight-binding model taking into account the distribution of diameter and the helical arrangement of tubes. We have found that a one-dimensional exciton effect prays an important role in the fundamental optical transition of semiconducting single-wall carbon nanotubes.

引用

页码：3131 / 3133

页数：3

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