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Admittance Spectroscopy on Polymer Light-Emitting Diodes
Published online by Cambridge University Press: 21 March 2011
Abstract
From admittance spectroscopy measurements on poly(p-phenylene vinylene) based light-emitting diodes various relaxation processes can be observed. At low bias inductive contributions due to the transit of charge carriers dominate, at high bias capacitive contributions as a result of charge redistribution appears. These processes reveal a transition from space-charge limited to recombination limited behavior, as is also indicated by the current-voltage characteristics.
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- Copyright © Materials Research Society 2001