以CzHQZn为空穴传输及发光层的有机黄光器件  

Yellow OLEDs with CzHQZn as Hole-transporting and Emitting Layers

作　　者：姜文龙[1] 张刚[1] 丁桂英[1] 汪津[1] 丛林[1] 孟昭晖[1] 王立忠[1] 欧阳新华[2] 曾和平[2] 

机构地区：[1]吉林师范大学信息技术学院,吉林四平136000 [2]华南理工大学化学与化工学院,广州510640

出　　处：《半导体光电》2009年第4期502-505,共4页Semiconductor Optoelectronics

基　　金：吉林省科技发展计划项目(20082112;20080528);吉林省教育厅科研计划项目(吉教科合字[2007]第154号;吉教科合字[2004]第54号);四平科技局计划项目(四科合字第2005007号;四科合字第2006008号)

摘　　要：讨论了结构为ITO/2T-NATA/CzHQZn/TPBi/LiF/Al的有机电致黄光器件。该器件中CzHQZn层既是空穴传输层,又是黄光发射层。在保证2T-NATA,TPBi和LiF的厚度分别为20,35和0.5 nm下,当CzHQZn的厚度为20 nm时器件的性能较好。在电压为8 V时,其最大亮度为2 968 cd/m2,在电压为7 V时效率也达到最大,为0.50 cd/A。效率和亮度几乎是同步达到最大的。该器件的启亮电压比较低,在电压为3 V时亮度为12 cd/m2。其色坐标在(0.51,0.47)和(0.48,0.49)的范围内,属于黄光器件。Yellow organic light-emitting diodes （OLEDs） with CzHQZn as holetransporting and emitting layers were discussed. Its structure is ITO/4,4＇,4＂-{N,-（2-naphthyl）- N-phenylamino }-triphenylamine [- 2T-NATA ]/（ E ）-2-（ 2-（ 9-ethyl-9H-carbazol-3-yl ） vinyl ） quinolato-Zinc[CzHQZn]/ 2, 2＇, 2＂-（1,3,5-phenylene） tris （ 1-phenyl-1 H-benzimidazole-[TPBi]/ LiF/Al. When the thicknesses of 2T-NATA.TPBi.LiF were made to be 20 nm, 35 nm, and 0.5 respectively, the best performance of the device is obtained when the thickness of CzHQZn is 20 nm. The maximum brightness of 2 968 cd/m2 was obtained at 8 V while the maximum luminous efficiency of 0.50 cd/A was obtained at 7 V. The device showed its low driving voltage and the luminance was 12 cd/m^2 at 3 V. The Commission International de L＇Eclairage coordinates of this device changed between（0.51,0.47） and （0.48,0.49）, which belong to yellow devices.

关 键 词：有机电致发光器件 空穴传输层 亮度 效率 

分 类 号：TN312.8[电子电信—物理电子学] TN929.11