Two-step dissociation of a polaron in conjugated polymers

Xiao Jing Liu, Kun Gao, Yuan Li, Jian Hua Wei, Shi Jie Xie*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We have studied the electric-field-driven motion of a polaron by solving the time-dependent Schrüdinger equation nonadiabatically and the lattice equation of motion simultaneously. It is found that the polaron may experience two sequent transitions under high fields; one is the transition from the subsonic to the supersonic state, and the other from the supersonic to dissociated state. The acoustic mode is decoupled from the charge when the polaron moves at a speed faster than the sound speed, and then the optical mode is decoupled at the second transition to make the polaron dissociate completely.

Original languageEnglish (US)
Article number048
Pages (from-to)2091-2095
Number of pages5
JournalChinese Physics
Volume16
Issue number7
DOIs
StatePublished - Jul 1 2007

Keywords

  • Conjugated polymer
  • Dynamics
  • Polaron

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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