Band-gap shift transition in the photoluminescence of single-walled carbon nanotubes

被引：58

作者：

Finnie, P

Homma, Y

Lefebvre, J

机构：

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

[2] NTT Corp, NTT Basic Res Labs, Kanagawa 2430198, Japan

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.94.247401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Photoluminescence (PL) from single-walled carbon nanotubes suspended in free space is shown to persist to high temperatures, at least to 425 degrees C. A new transition is identified, shifting the optical band gap. This transition is abrupt, is hysteretic, depends simply on the PL emission energy, and is affected by the gas atmosphere. A model is proposed to explain the transition, connecting changes in the PL to the environment.

引用

页数：4

共 20 条

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