Reversible surface oxidation and efficient luminescence quenching in semiconductor single-wall carbon nanotubes

被引：221

作者：

Dukovic, G

White, BE

Zhou, ZY

Wang, F

Jockusch, S

Steigerwald, ML

Heinz, TF

Friesner, RA

Turro, NJ

Brus, LE

机构：

[1] Columbia Univ, Dept Chem, New York, NY 10027 USA

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2004年 / 126卷 / 46期

关键词：

D O I：

10.1021/ja046526r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At low pH, the endoperoxide protonates to create a hydroperoxide carbocation, introducing a hole in the SWNT valence band. Nanotube luminescence is extremely sensitive to quenching by hole-doping, while the absorption is relatively robust.

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页码：15269 / 15276

页数：8

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