Top-Emitting Organic Light-Emitting Diodes With Step-Doped Emission Layers

Author

Huang, Yi-Hsiang ; Liou, Bo-Ting ; Chen, Jen-De ; Kuo, Yen-Kuang

Author_Institution

Grad. Inst. of Photonics & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan

Volume

23

Issue

8

fYear

2011

fDate

4/15/2011 12:00:00 AM

Firstpage

480

Lastpage

482

Abstract

High-efficiency top-emitting organic light-emitting diodes (OLEDs) with step-doped emission layers are numerically investigated. The simulation results demonstrate that the OLEDs with step-doped emission layers have better electrical performance and higher emitting intensity than those without step-doped design. Compared to conventional OLED devices, step-doped OLEDs with Fabry-Pérot microcavity not only have fixed wavelength but also have narrow emission spectral width. The simulation results suggest that the OLED structure with step-doped design in a Fabry-Pérot microcavity has superior performance and hence is beneficial for the display applications.

Keywords

Fabry-Perot interferometers; organic light emitting diodes; Fabry-Pérot microcavity; OLED; step-doped emission layers; top-emitting organic light-emitting diodes; Anodes; Cathodes; Fabry-Perot; Materials; Microcavities; Organic light emitting diodes; Radiative recombination; Electroluminescent devices; electrooptic devices; organic light-emitting diode (OLED); simulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2011.2110641

Filename

5706353