Admittance Spectroscopy on Polymer Light-Emitting Diodes

Autor: H. B. Brom, P.W.M. Blom, J. N. Huiberts, H. C. F. Martens
Rok vydání: 2001
Předmět:
Zdroj: MRS Proceedings. 665
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-665-c3.3
Popis: 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.
Databáze: OpenAIRE