Polarized photoluminescence excitation spectroscopy of single-walled carbon nanotubes

被引：119

作者：

Lefebvre, J. ^{[1
]}

Finnie, P. ^{[1
]}

机构：

[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON K1A 0R6, Canada

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.98.167406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The polarized photoluminescence excitation spectra of twenty-five single-walled carbon nanotube species are reported. For light polarized along the nanotube axis, the main absorption resonance at E(22) shows sidebands attributed to phonon assisted absorption. Sidebands to E(11) have a diameter dependent energy and are assigned to excited excitonic states. Along with longitudinal excitations, several transverse excitations are identified. The transverse E(12) resonance has a specific family pattern with energy close to E(22). Comparison with theory provides an estimate of the strength of the Coulomb interaction.

引用

页数：4

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