Abstract
Transient electroluminescence in an organic LED based on a thin polymeric film
has been experimentally studied and theoretically analyzed. The calculated and
experimental curves are both characterized by anomalous dispersion and universality,
which can be regarded as a manifestation of field-induced charge-carrier diffusion in
the nonequilibrium transport regime. It is shown that the charge-carrier time of flight
corresponds to the time to reach half the steady-state radiation intensity, rather than
the delay time of the electroluminescence relative to the beginning of the applied
voltage pulse.
© 2012 OSA
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