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
收藏
页码：3131 / 3133
页数：3
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