• A
  • A
  • A
  • ABC
  • ABC
  • ABC
  • А
  • А
  • А
  • А
  • А
Regular version of the site

Article

The Nature of the Field Dependence of Drift Mobility in Molecularly Doped Polymers

Polymer Science - Series A. 2016. Vol. 58. No. 5. P. 818-824.

Carried out direct experimental comparison of the field dependence of the drift and the effective mobility of holes in the polar molecularly doped polymer, the polycarbonate containing 30 wt. % diphenylhydrazone -diethylaminobenzaldehyde) based on the method of time-of-flight in volumetric irradiation samples of polymer with a pulse of fast electrons. Numerical simulation of time-of-flight experiment was performed using the multiple trapping model with the Gaussian trap distribution in energy. The model parameters are determined from the independent measurements. It is shown that due to the nonequilibrium transport of holes in terms of time-of-flight experiment the true constant of the Poole–Frenkel (0.27 (μ/IV)^1/2) is only part of the experimentally determined value (0.39 (μ/IV)^1/2)