Hopping in a Gaussian distribution of energy states: Transition from dispersive to non-dispersive transport |
| |
| Authors: | L. Pautmeier R. Richert H. Bässler |
| |
| Affiliation: | Fachbereich Physikalische Chemie, Philipps-Universit?t, Hans-Meerwein-Str?k , D-3550, Marburg, F.R. Germany |
| |
| Abstract: | Abstract By means of Monte Carlo simulation techniques the relaxation of a packet of charge carriers migrating in a Gaussian density of states of width σ has been studied. The relaxation time determines the transition from dispersive to non-dispersive transport seen in a time-of-flight signal. For a 10 μm thick sample under a bias field of 105 V cm?1 the critical disorder parameter σ/kT turns out to be 4·4. Consistency with experimental results from polymers is found. |
| |
| Keywords: | |
|
|
