空穴传输层NPBX厚度对白光OLED性能的影响  

Effect of the Thickness of Hole-transporting Layer NPBX on the Performance of White OLED

作　　者：王立忠[1] 姜文龙[1] 王静[1] 王洪梅[1] 王广德[1] 

机构地区：[1]吉林师范大学信息技术学院,吉林四平136000

出　　处：《半导体光电》2008年第5期655-657,共3页Semiconductor Optoelectronics

基　　金：吉林省科技发展计划项目(20050523;20080528);吉林省教育厅科研计划项目([2003]25;[2004]54;[2007]154);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：讨论了空穴传输层材料NPBX厚度对白光有机电致发光器件(OLED)性能的影响。采用了ITO/2T-NATA/NPBX/DPVBi/Rubrene/DPVBi/Rubrene/Alq3/LiF/Al的多层结构器件。在这种多层结构的器件中,其他材料的厚度保持不变,使NPBX的厚度按10、15、202、5 nm的规律改变。当NPBX厚度为15 nm时,器件性能最好。该器件在14 V电压下最大亮度为19 300cd/m2,在7 V的电压下最大效率为5.326 cd/A,色坐标为(0.27,0.33)。The effects of the thickness of hole-tranporting layer NPBX on the performance of white OLEDs were discussed. Applied was the kind of devices with a structure of ITO/2T- NATA/NPBX/DPVBi/Rubrene/DPVBi/Rubrene/Alq3/LiF/A1. The thickness of NPBX was changed for 10,15,20,25 nm, while that of other materials kept fixed. The devices earned the best performance when the thickness of NPBX are 15 nm. Meanwhile , the devices achieved the highest luminence of 19 300 cd/m^2 at 14 V, and the highest efficiecy of 5. 326 cd/A and the color coordinate of （0.27,0.33） at 7 V.

关 键 词：NPBX 白光有机电致发光器件 空穴传输层 

分 类 号：TN383.1[电子电信—物理电子学]