Phonon-assisted excitonic recombination channels observed in DNA-wrapped carbon nanotubes using photoluminescence spectroscopy

被引：106

作者：

Chou, SG ^{[1
]}

Plentz, F

Jiang, J

Saito, R

Nezich, D

Ribeiro, HB

Jorio, A

Pimenta, MA

Samsonidze, GG

Santos, AP

Zheng, M

Onoa, GB

Semke, ED

Dresselhaus, G

Dresselhaus, MS

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

[2] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil

[3] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

[4] CREST JST, Sendai, Miyagi 9808578, Japan

[5] MIT, Dept Phys, Cambridge, MA 02139 USA

[6] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

[7] CDTN CNEN, Ctr Desenvolvimento Tecn Nucl, BR-30123970 Belo Horizonte, MG, Brazil

[8] DuPont Co Inc, Cent Res & Dev, Expt Stn, Wilmington, DE 19880 USA

[9] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.94.127402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By using a sample of DNA-wrapped single-wall carbon nanotubes strongly enriched in the (6,5) nanotube, photoluminescence emissions observed at special excitation energy values were identified with specific mechanisms of phonon-assisted excitonic absorption and recombination processes associated with (6,5) nanotubes, including one-phonon, two-phonon, and some continuous-luminescence processes. Such detailed processes are not separately identified in three-dimensional semiconducting materials. A general theoretical framework is presented to interpret the experimentally observed phonon-assisted processes in terms of excitonic states.

引用

页码：1 / 4

页数：4

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