Intrinsic and extrinsic effects in the temperature-dependent photoluminescence of semiconducting carbon nanotubes

被引：38

作者：

Karaiskaj, D ^{[1
]}

Engtrakul, C ^{[1
]}

McDonald, T ^{[1
]}

Heben, MJ ^{[1
]}

Mascarenhas, A ^{[1
]}

机构：

[1] Ctr Basic Sci, Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.96.106805

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The temperature dependence of the band gap of semiconducting carbon nanotubes was measured for ten different nanotube species. The unprecedented effectiveness in avoiding the effect of external strain, or any other effects originating from the surrounding environment, lead to an accurate measurement of the band gap temperature dependence, giving fundamental insight into the nanotube electron-phonon interaction. Small but reproducible energy shifts of the emission lines with temperature were observed, showing a moderate chirality dependence, well in agreement with recent theoretical calculations. In addition to the energy shift, a substantial narrowing of the emission lines was also observed. The removal of the temperature shift of the band gap allows the precise measurement of the effect of external strain on carbon nanotubes in different environments.

引用

页数：4

共 15 条

[1] THEORY OF THE TEMPERATURE-DEPENDENCE OF THE DIRECT GAP OF GERMANIUM [J].

ALLEN, PB ;

CARDONA, M .

PHYSICAL REVIEW B, 1981, 23 (04) :1495-1505

[2] TEMPERATURE-DEPENDENCE OF THE DIRECT GAP OF SI AND GE [J].

ALLEN, PB ;

CARDONA, M .

PHYSICAL REVIEW B, 1983, 27 (08) :4760-4769

[3] 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

[4] Temperature dependence of the band gap of semiconducting carbon nanotubes [J].

Capaz, RB ;

Spataru, CD ;

Tangney, P ;

Cohen, ML ;

Louie, SG .

PHYSICAL REVIEW LETTERS, 2005, 94 (03)

[5] Hydrostatic pressure effects on the structural and electronic properties of carbon nanotubes [J].

Capaz, RB ;

Spataru, CD ;

Tangney, P ;

Cohen, ML ;

Louie, SG .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2004, 241 (14) :3352-3359

[6] Band-gap shift transition in the photoluminescence of single-walled carbon nanotubes [J].

Finnie, P ;

Homma, Y ;

Lefebvre, J .

PHYSICAL REVIEW LETTERS, 2005, 94 (24)

[7] Low temperature emission spectra of individual single-walled carbon nanotubes: Multiplicity of subspecies within single-species nanotube ensembles [J].

Htoon, H ;

O'Connell, MJ ;

Cox, PJ ;

Doorn, SK ;

Klimov, VI .

PHYSICAL REVIEW LETTERS, 2004, 93 (02) :027401-1

[8] Temperature-dependent photoluminescence from single-walled carbon nanotubes [J].

Lefebvre, J ;

Finnie, P ;

Homma, Y .

PHYSICAL REVIEW B, 2004, 70 (04) :045419-1

[9] Chirality assignment of single-walled carbon nanotubes with strain [J].

Li, LJ ;

Nicholas, RJ ;

Deacon, RS ;

Shields, PA .

PHYSICAL REVIEW LETTERS, 2004, 93 (15) :156104-1

[10] Band gap fluorescence from individual single-walled carbon nanotubes [J].

O'Connell, MJ ;

Bachilo, SM ;

Huffman, CB ;

Moore, VC ;

Strano, MS ;

Haroz, EH ;

Rialon, KL ;

Boul, PJ ;

Noon, WH ;

Kittrell, C ;

Ma, JP ;

Hauge, RH ;

Weisman, RB ;

Smalley, RE .

SCIENCE, 2002, 297 (5581) :593-596

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