使用AlQ的高效率红色有机电致发光器件

High Efficiency Red Organic Light-Emitting Diodes Using Tris-(8-Hydroxyquinoline) Aluminum

摘要: 以8-羟基喹林铝(AlQ)为主体材料,通过4(Dicyanomethylen)-2-methyl-6-(P-dimethylaminostyryl)-4H-pyran (DCM)红色发光材料的掺杂,制备了AlQ:Rubrene:DCM体系的高效率、高亮度的红色电致发光器件。器件结构为ITO/N,N'-Di-(1-naphthalenyl)-N,N'-diphenyl-(1,1'-biphenyl)-4,4'-diamine (NPB)/AlQ:Rubrene (3%):DCM (3%)/AlQ/Mg:Ag/Al,亮度为4 330 cd/m2,色坐标为(0.51,0.44),最大流明效率为6.77 lm/W。

Abstract: High efficiency red organic light-emitting diodes (OLEDs) using tris-(8-hydroxyquinoline) aluminum (AlQ) as host material fabricated via a thermal vacuum deposition process were investigated. Red organic EL devices with the structure of ITO/NPB/AlQ:Rubence(3%):DCM(3%)/AlQ/Mg:Ag/Al with a CIE coordinates of (0.45, 0.50), a maximum luminance of 4 330 cd/m2, and a maximum luminance efficiency of 6.77 lm/W have been achieved.