|
|||||
|
|
Femtosecond luminescence decay due to exciton energy transfer in single-walled carbon nanotube bundles |
|
| Authors: | Takeshi Koyama Koji Asaka Hideo Kishida Arao Nakamura |
| Institution: | a Department of Applied Physics, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan b Department of Quantum Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan |
| Abstract: | We investigated luminescence decay kinetics in single-walled carbon nanotubes in large bundles excited by femtosecond pulses. The time constant of luminescence decay becomes longer with decrease in photon energy: 40 fs at 1.2 eV and 380 fs at 0.6 eV. This behavior is explained by exciton energy transfer from an excited to neighboring tubes. |
| Keywords: | Single-walled carbon nanotube Exciton energy transfer Femtosecond luminescence spectroscopy Up-conversion technique |
| 本文献已被 ScienceDirect 等数据库收录！ | |