Improved Light Extraction of Organic Light Emitting Diode With Microcavity structure based on $SiO_2/TiO_2/SIO_2$ Multi 1D Layer

  • Kang, Nam-Su (Center for Advanced Energy Materials, Korea Institute of Science and Technology, Display and Nanosystem Laboratory, College of Engineering, Korea University) ;
  • Kim, Jai-Kyeong (Center for Advanced Energy Materials, Korea Institute of Science and Technology) ;
  • Yoo, Jai-Woong (Center for Advanced Energy Materials, Korea Institute of Science and Technology) ;
  • Ju, Byeong-Kwon (Display and Nanosystem Laboratory, College of Engineering, Korea University) ;
  • Chin, Byung-Doo (Center for Advanced Energy Materials, Korea Institute of Science and Technology)
  • Published : 2007.08.27

Abstract

In this work, we have modeled and fabricated microcavity-enhanced OLED using the 1-dimensional distributed Bragg reflector model (DBR). Results show that simulated spectrum intensity of microcavity OLED increased more than 30% compared to the conventional OLED, by use of DBR with $TiO_2$ and $SiO_2$. Spectral change of green and blue emission was expected to give the deeper color. The experimental design and characterization as well as the matching with simulated properties were performed for microcavity OLED for actual application.

Keywords