Photoluminescence of metallic single-walled carbon nanotubes: Role of interband and intraband transitions

被引：3

作者：

Koyama, Takeshi ^{[1
]}

Umewaki, Nobuki ^{[1
]}

Saito, Kensuke ^{[1
]}

Tatsuno, Tomoki ^{[1
]}

Fujisaki, Akira ^{[1
]}

Miyata, Yasumitsu ^{[2
]}

Kataura, Hiromichi ^{[3
]}

Kishida, Hideo ^{[1
]}

机构：

[1] Nagoya Univ, Dept Appl Phys, Chikusa Ku, Nagoya, Aichi 4648603, Japan

[2] Tokyo Metropolitan Univ, Dept Phys, 1-1 Minatni Osawa, Hachioji, Tokyo 1920397, Japan

[3] Natl Inst Adv Ind Sci & Technol, Nanomat Res Inst, Tsukuba, Ibaraki 3058565, Japan

来源：

PHYSICAL REVIEW B | 2022年 / 106卷 / 04期

关键词：

ABSORPTION-SPECTRA; EXCITONS; TRANSPORT; GRAPHENE; PLASMON; STATES;

D O I：

10.1103/PhysRevB.106.045421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The photoluminescence (PL) properties of metallic single-walled carbon nanotubes were investigated. Steadystate measurements showed interband excitonic PL in the first hyperbolic dispersion region. The decay kinetics of this interband excitonic PL was observed by femtosecond time-resolved measurements, which also showed the occurrence of intraband PL in the linear dispersion region. The decay time constant of interband excitonic PL is approximately 40 fs, while that of intraband PL is slower at the lower photon energy. This study demonstrates the role of interband and intraband transitions in the PL of a one-dimensional metal.

引用

页数：8

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