ELECTRON ENERGY-LOSS SPECTRA OF CARBON NANOTUBES

被引：114

作者：

KUZUO, R

TERAUCHI, M

TANAKA, M

机构：

[1] Research Institute for Scientific Measurements, Tohoku University, Sendai

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 1992年 / 31卷 / 10B期

关键词：

CARBON NANOTUBES; FULLERENES; GRAPHITE; EELS; BULK PLASMON; INTERBAND TRANSITION;

D O I：

10.1143/JJAP.31.L1484

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Carbon nanotubes were investigated by means of electron energy-loss spectroscopy. Two peaks due to the pi plasmon and the pi + sigma plasmon were observed. The energy of the pi + sigma plasmon peaks varied from 22.0 eV to 24.5 eV, which roughly agrees with the average plasmon energy of graphite. A shoulder due to single electron excitations was observed at 13 eV, which was not observed in graphite. There were two kinds of nanotubes which exhibited their respective pi plasmon peaks at 5.2 eV and 6.4 eV. The peaks in the dielectric function obtained by Kramers-Kronig analysis of the spectra were broader than those of graphite probably due to the curving of the graphitic sheets.

引用

页码：L1484 / L1487

页数：4

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