Chung, DH Hur, SW Lee, JU Song, MJ Jang, KU Kim, SK Cho, HN Kim, TW 2024-01-21T06:37:49Z 2024-01-21T06:37:49Z 2021-09-05 2004-08 1567-1739 https://pubs.kist.re.kr/handle/201004/137353 Frequency-dependent response of organic light-emitting diodes was studied in a device structure of ITO/Alq(3) (60 nm)/Al. Frequency was varied from 40 Hz to 1 MHz and the bias voltage was varied from -5 to +13 V. We have interpreted the frequency dependent response in terms of equivalent circuit model of parallel combination of resistance R-p and capacitance C-p. From the frequency-dependent response, we are able to obtain characteristic crossover frequency omega(0) separating resistive and capacitive response. And we found that there is an effect of interfacial polarization in the frequency range well below the crossover frequency when the applied voltage is lower than turn-on voltage. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER Frequency-dependent response in ITO/Alq(3)/Al organic light-emitting diodes Article 10.1016/j.cap.2004.01.015 1 CURRENT APPLIED PHYSICS, v.4, no.5, pp.543 - 546 CURRENT APPLIED PHYSICS 4 5 543 546 scie scopus kci other 000223077500025 2-s2.0-3242798228 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article; Proceedings Paper electroluminescence frequency light-emitting devices