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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