Modeling and Characterization of Organic Light-Emitting Diodes Including Capacitance Effect

Author

Bender, Vitor C. ; Barth, Norton D. ; Mendes, Fernanda B. ; Pinto, Rafael A. ; Marcos Alonso, J. ; Marchesan, Tiago B.

Author_Institution

Electron. Ballast Res. Group, Fed. Univ. of Santa Maria, Santa Maria, Brazil

Volume

62

Issue

10

fYear

2015

Firstpage

3314

Lastpage

3321

Abstract

This paper presents a new theoretical equivalent model (TEM) for organic light-emitting diodes (OLEDs). The parameters of TEM are identified using a simple characterization procedure based on auxiliary circuits and low-cost equipment. From this TEM, a method for intrinsic capacitance identification is proposed. This model is useful to simulate and analyze OLED devices considering dynamic and steady-state operation conditions. In addition, it provides guidelines for manufacturers and lighting designers to enhance the device performance and to design dedicated OLED drivers. In order to validate the proposal of this paper, four commercial OLEDs are tested, and the comparison between the theoretical and the experimental results is satisfactory.

Keywords

capacitance; organic light emitting diodes; semiconductor device models; OLED; TEM; capacitance effect; organic light-emitting diodes; theoretical equivalent model; Capacitance; Current measurement; Electrodes; Integrated circuit modeling; Mathematical model; Organic light emitting diodes; Resistance; Capacitance; OLED driver; electrical modeling; organic light-emitting diode (OLED); solid-state lighting; solid-state lighting.;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2015.2467314

Filename

7222420