Photoluminescence from intertube carrier migration in single-walled carbon nanotube bundles

被引：87

作者：

Torrens, O. N.

Milkie, D. E.

Zheng, M.

Kikkawa, J. M.

机构：

[1] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[2] Dupont Cent Res & Dev Expt Stn, Wilmington, DE 19880 USA

来源：

NANO LETTERS | 2006年 / 6卷 / 12期

关键词：

Energy gap - Optical pumping - Photoluminescence - Spectroscopic analysis;

D O I：

10.1021/nl062071n

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Photoluminescence (PL) identifies spectroscopic signatures of intertube transfer of optically pumped carriers in single-walled carbon nanotube (SWNT) ensembles. Resonant photoexcitation of large band gap SWNTs produces strong PL from smaller band gap SWNTs. Magnetic alignment measurements associate the energy-transfer PL peaks with the formation of SWNT bundles, suggesting that efficient coupling results from physical contact.

引用

收藏

页码：2864 / 2867

页数：4

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