유기물의 ETL적용에 따른 OLED의 특성평가

Electron Transport Layer(ETL) in the New Organics applied to evaluate the characteristics of OLED

  • 김태용 (순천향대학교 공과대학 디스플레이 신소재공학과) ;
  • 문대규 (순천향대학교 공과대학 디스플레이 신소재공학과)
  • 발행 : 2008.04.25

초록

In this paper, we have developed Organic light-emitting devices(OLEDs) using various thicknesses of new electron transport layer. The device structure of ITO/ 2-TNATA(15nm)/ DPVBi(40nm)/ New ETL(20nm,60nm,100nm)/ LiF(0.5nm)/Al(100nm) has been used. The operating voltage of the device was almost independent of the new ETL thickness, due to its high electron conducting property. For example, the operating voltages of the devices with 20nm and 60nm layers are almost 5V at a current density $200mA/cm^2$. The device with the new ETL shows the low turn-on of 2.5V.

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