以iridium磷光为红绿蓝染料的白光器件研究  

White organic light emitting devices with phosphorescent iridium complex as RGB dopants

作　　者：宋瑞丽[1] 段羽[2] 陈淑芬[2] 赵毅[2] 侯晶莹[2] 刘式墉[2] 

机构地区：[1]东北电力大学物理系,吉林吉林132012 [2]吉林大学集成光电子学国家重点实验室,吉林长春130012

出　　处：《光电子．激光》2008年第2期180-182,共3页Journal of Optoelectronics·Laser

摘　　要：以磷光染料iridium(Ⅲ)bis[(4,6-di-fluoropheny)-pyridinato-N,C2′]picolinate(Flrpic)掺在4.4′-bis(9-car-bazolyl)-2,2′-dimethyl-biphenyl(CDBP)中作为蓝光发光层,tris(2-Phenylpyridine)iridium(Irlppy)3和bis(1-phe-nyl-isoquinoline)acetylacetonate iridium(Ⅲ)(Ir(piq)2)(acac)共掺在4,4′-N,N′-dicarbazole-biphenyl(CBP)中作为绿光和红光发光层,制备了高效白光器件。通过控制染料的浓度和发光层的厚度调节颜色,实现白光发射。器件的最大亮度为17V时37100cd/m2,最大效率为5V时7.37lm/W。当亮度从1000cd/m2到30000cd/m2色坐标由(0.41,0.42)变到(0.37,0.39)。An efficient phosphorescent white organic light-emitting diode（WOLED） was realized by using a bright blue-emit- ting layer of iridium （Ⅲ ）bis [（4,6-di-fluoropheny）-pyridinato-N,C2＇] pieolinate doped 4.4＇-bis （9-carbazolyl）-2,2＇-dime- thyl-biphenyl, where tris （2-Phenylpyridine） iridium and bis （1-phenyl-isoquinoline） acetylacetonate iridium （Ⅲ） are codoped into 4,4＇-N, N＇-dicarbazole-biphenyl layer to provide blue, green, and red emission for color mixing. The device emission color is controlled by varying dopant concentrations and the thicknesses of blue and green-red layers as well as tuning the thicknesses of exciton-blocking layer. The maximum luminance and power efficiency of the WOLED are 37 100 cd/m^2 at 17 V and 7.37 1m/W at 5 V, respectively. The Commission Internationale de 1＇Eclairage （CIE） chromaticity coordinate changes from （0. 41,0.42） to （0.37,0. 39） when the luminance ranges from 1 000 cd/m^2 to 30 000 cd/m^2 .

关 键 词：效率 亮度 磷光染料 

分 类 号：TN383[电子电信—物理电子学]