Luminescence decay and the absorption cross section of individual single-walled carbon nanotubes

被引：155

作者：

Berciaud, Stephane ^{[1
]}

Cognet, Laurent

Lounis, Brahim

机构：

[1] Univ Bordeaux, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.101.077402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The absorption cross section of highly luminescent individual single-walled carbon nanotubes is determined using time-resolved and cw luminescence spectroscopy. A mean value of similar to 1x10(-17) cm(2) per carbon atom is obtained for (6,5) tubes excited at their second optical transition, and corroborated by single tube photothermal absorption measurements. Biexponential luminescence decays are systematically observed, with short and long lifetimes around 45 and 250 ps. This behavior is attributed to the band edge exciton fine structure with a dark level lying a few meV below a bright one.

引用

页数：4

共 27 条

[1] Structure-assigned optical spectra of single-walled carbon nanotubes [J].

Bachilo, SM ;

Strano, MS ;

Kittrell, C ;

Hauge, RH ;

Smalley, RE ;

Weisman, RB .

SCIENCE, 2002, 298 (5602) :2361-2366

[2] Photothermal heterodyne imaging of individual nonfluorescent nanoclusters and nanocrystals [J].

Berciaud, S ;

Cognet, L ;

Blab, GA ;

Lounis, B .

PHYSICAL REVIEW LETTERS, 2004, 93 (25)

[3] Absorption spectroscopy of individual single-walled carbon nanotubes [J].

Berciaud, Stephane ;

Cognet, Laurent ;

Poulin, Philippe ;

Weisman, R. Bruce ;

Lounis, Brahim .

NANO LETTERS, 2007, 7 (05) :1203-1207

[4]

Berger S, 2007, NANO LETT, V7, P398, DOI 10.1021/n1062609p

[5] Fluorescence efficiency of individual carbon nanotubes [J].

Carlson, Lisa J. ;

Maccagnano, Sara E. ;

Zheng, Ming ;

Silcox, John ;

Krauss, Todd D. .

NANO LETTERS, 2007, 7 (12) :3698-3703

[6] Stepwise quenching of exciton fluorescence in carbon nanotubes by single-molecule reactions [J].

Cognet, Laurent ;

Tsyboulski, Dmitri A. ;

Rocha, John-David R. ;

Doyle, Condell D. ;

Tour, James M. ;

Weisman, R. Bruce .

SCIENCE, 2007, 316 (5830) :1465-1468

[7] Quantum yield heterogeneities of aqueous single-wall carbon nanotube suspensions [J].

Crochet, Jared ;

Clemens, Michael ;

Hertel, Tobias .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (26) :8058-+

[8] Exponential decay lifetimes of excitons in individual single-walled carbon nanotubes [J].

Hagen, A ;

Steiner, M ;

Raschke, MB ;

Lienau, C ;

Hertel, T ;

Qian, HH ;

Meixner, AJ ;

Hartschuh, A .

PHYSICAL REVIEW LETTERS, 2005, 95 (19)

[9]

Hertel T, 2008, NANO LETT, V8, P87, DOI 10.1021/nI0720915

[10] Exciton localization of single-walled carbon nanotubes revealed by femtosecond excitation correlation spectroscopy [J].

Hirori, Hideki ;

Matsuda, Kazunari ;

Miyauchi, Yuhei ;

Maruyama, Shigeo ;

Kanemitsu, Yoshihiko .

PHYSICAL REVIEW LETTERS, 2006, 97 (25)

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