Analysis of Out-Coupling Mechanism in Organic Light-Emitting Diodes

Author

Jin Yeong Kim ; Danbi Kim ; Do Hong Kim ; Kyung Cheol Choi

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

26

Issue

9

fYear

2014

fDate

May1, 1 2014

Firstpage

896

Lastpage

899

Abstract

We investigated the quantitative mechanism of out-coupling enhancement in nanostructure-embedded organic light-emitting diodes (OLEDs). A numerical calculation was performed for a 2-D configuration with nanostructures, and power dissipation via various optical modes was achieved. The extraction of light loss from the surface plasmon mode was three times higher than that from the waveguide mode in nanostructure-embedded OLEDs. Thus, we conclude that out-coupling enhancement originates from the recovery of light losses related to the surface plasmon mode. Furthermore, we simulated the relation between out-coupling enhancement and the geometry of the nanostructure.

Keywords

nanoelectronics; nanostructured materials; numerical analysis; optical losses; organic light emitting diodes; surface plasmons; 2D configuration; light loss extraction; nanostructure-embedded OLED; nanostructure-embedded organic light-emitting diodes; numerical calculation; optical modes; out-coupling mechanism; power dissipation; surface plasmon mode; Nanostructures; Optical losses; Organic light emitting diodes; Power dissipation; Scattering; Substrates; Transmission line matrix methods; Bragg scattering; organic light-emitting diodes; out-coupling; surface plasmon;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2308253

Filename

6758363