Author/Authors :
Liu، نويسنده , , Shihao and Wen، نويسنده , , Xuemei and Liu، نويسنده , , Wenbo and Zhang، نويسنده , , Wei and Yu، نويسنده , , Jing and Xie، نويسنده , , Wenfa and Zhang، نويسنده , , Letian، نويسنده ,
Abstract :
Angle-stable white top-emitting organic light-emitting devices (WTEOLEDs) by the combination of a blue TEOLED with a down-conversion (DC) layer are demonstrated. The DC layer is composed of red fluorescent dye doped in a host of tris (8-hydroxy-quinolinato) aluminum. The TEWOLED shows a CIE coordinates of (0.240, 0.332) and a maximum current efficiency of 3.95 cd/A. Furthermore, the WTEOLED shows excellently angle-stable characteristic, the CIE coordinates at 20 mA/cm2 only shift by (0.023, −0.007) from 0° to 60°. It can be attributed to the angle-stable blue TEOLED based on the Ag/Ge/Ag transparent cathode.
