Open AccessTHE EFFICIENCY OF THE FORMATION AND FISSION OF POLARON-EXCITONS IN POLYMER LIGHT-EMITTING DEVICES
Author(s) -
Hongjian Li,
Jie Peng,
Xu Xie-Mei,
Qu Shu,
Xia Hui
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.2247
Subject(s) - polaron , exciton , fission , materials science , dopant , polymer , quantum efficiency , condensed matter physics , chemical physics , physics , optoelectronics , nuclear physics , doping , neutron , composite material , electron
The processes of formation and fission of polaron-excitons in polymer light-emitting devices are investigated in detail. A theoretical model and a complete analytic function for polaron-excitions fission is proposed. The influences of applied bias, temperature and dopant concentrations on recombination internal quantum efficiency are thoroughly studied. This theoretical model could explain the experimental phenomena.