Admittance spectroscopic characteristics and equivalent circuit modeling of small molecule-based organic light emitting diodes

Yong Soo Lee, Jae Hoon Park, Jong Sun Choi, Jeong In Han

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Admittance or impedance spectroscopy is one of the powerful tools to study the equivalent circuit models and the dielectric relaxation processes in organic and inorganic materials and devices. The frequency-dependent properties of small molecule-based organic light emitting diodes have been studied. The single-layer diodes can be modeled as a simple parallel resistor-capacitor circuit. The equivalent circuit models of double-layer devices, for which the single-layer device model is expanded and the interface properties between the organic layers are included, are suggested.

Original languageEnglish
Pages (from-to)2715-2718
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume42
Issue number5 A
DOIs
StatePublished - May 2003

Keywords

  • Complex admittance
  • Equivalent circuit model
  • Frequency dependence
  • Organic light emitting diode

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