Admittance Spectroscopy on Polymer Light-Emitting Diodes

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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Correspondence to P. W. M. Blom.

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Blom, P.W.M., Martens, H.C.F., Brom, H.B. et al. Admittance Spectroscopy on Polymer Light-Emitting Diodes. MRS Online Proceedings Library 665, 33 (2000). https://doi.org/10.1557/PROC-665-C3.3

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