Mechanism of exciton dephasing in a single carbon nanotube studied by photoluminescence spectroscopy

• Yoshikawa, Kohei

• Matsunaga, Ryusuke

• Matsuda, Kazunari

• Kanemitsu, Yoshihiko

Abstract

We studied the temperature and chirality dependence of the photoluminescence (PL) linewidth of single carbon nanotubes to clarify the mechanism of exciton dephasing. The PL linewidth of a single carbon nanotube broadened linearly with increasing temperature, indicating that the linewidth and exciton dephasing are determined through exciton-phonon interactions. From the chirality dependence of the PL linewidth, we concluded that exciton dephasing is caused by both the longitudinal acoustic and twisting phonon modes.

Journal

• Applied Physics Letters

  Applied Physics Letters 94 (9), 2009-03

  American Institute of Physics

Details

• CRID: 1050564285559951360
• NII Article ID: 120001682375
• ISSN: 00036951
• HANDLE: 2433/87344
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN