Finite Element Study on the Micro-cavity Effect in OLED Devices

In this paper, we discuss on the optimal design scheme of the bilayer OLED (Organic Light Emitting Diodes) with micro-cavity structure. We carried out the optical simulation on the OLED device and calculated optimal scale of devices with taking the micro-cavity effect into account. Our emission mode...

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Bibliographic Details
Published inJournal of semiconductor technology and science Vol. 14; no. 1; pp. 23 - 28
Main Authors Lee, Hyeongi, Hwang, Youngwook, Won, Taeyoung
Format Journal Article
LanguageKorean
Published 2014
Subjects
Numerical analysis
microcavity
OLED
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Summary:In this paper, we discuss on the optimal design scheme of the bilayer OLED (Organic Light Emitting Diodes) with micro-cavity structure. We carried out the optical simulation on the OLED device and calculated optimal scale of devices with taking the micro-cavity effect into account. Our emission model is based upon an ensemble of radiating dipole antennas. Consequently, we applied Maxwell's equation to this sequence, followed by the analysis on the electrical behaviors of OLED device using Poisson's equation. It contains carrier injection and transportation mechanism. In this process, we found out the thickness of each layer can affect the recombination rate at the emission layer. Therefore, we optimized the thickness of each layer to improve the efficiency of the device.
Bibliography:KISTI1.1003/JNL.JAKO201408739559696
ISSN:1598-1657