Fluorescence efficiency of individual carbon nanotubes

被引：108

作者：

Carlson, Lisa J. ^{[1
]}

Maccagnano, Sara E. ^{[2
]}

Zheng, Ming ^{[3
]}

Silcox, John ^{[2
]}

Krauss, Todd D. ^{[1
]}

机构：

[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA

[2] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA

[3] DuPont Cent Res & Dev, Wilmington, DE 19880 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 12期

关键词：

D O I：

10.1021/nl072014+

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The luminescence efficiency of individual single-walled carbon nanotubes was determined by comparing the fluorescence from individual nanotubes to single CdTe/ZnS quantum dots with a well-defined fluorescence quantum yield (QY). The single carbon nanotube QY was determined to be 3 +/- 1%, nearly 100 times greater than values previously reported for ensembles. The intrinsic nanotube QY is potentially much higher than previously believed and appears lower in ensembles due to defective nanotubes and residual bundles.

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页码：3698 / 3703

页数：6

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