Efficiency Properties of OLED Depending on Thickness Variation of Emission Layer($Alq_3$)

발광층($Alq_3$)의 두께 변화에 따른 OLED의 효율 특성 연구

  • Park, Jun-Woo (Department of Electrical Engineering, Dong-A University) ;
  • Choi, Gyu-Chae (Department of Electrical Engineering, Dong-A University) ;
  • Kim, Dong-Eun (Department of Electrical Engineering, Dong-A University) ;
  • Kim, Byoung-Sang (Department of Electrical Engineering, Dong-A University) ;
  • Kwon, Young-Soo (Department of Electrical Engineering, Dong-A University)
  • Published : 2009.07.14

Abstract

Organic light emitting diode (OLED) is currently the focus of intense interest in the field of photonics. It is attractive for the in low-operating voltage, low power consumption, easy fabrication and low cost. A typical OLED consists of one or more organic layers sandwiched between a high work function anode, such as indium tin oxide (ITO), and a low work function cathode such as Ca, Mg:Ag, and Al. Tris-(8-hydroxy)quinolinealuminum ($Alq_3$) has taken a prominent position in the development of OLED due to its relative stability as an electron transporting and emitting material. We investigated an efficiency improvement of the OLED depending on thickness variation of $Alq_3$.

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