插入层TmP_yPb对白色有机电致发光二极管色纯度的影响  

Improvement of Color Purity in White OLED Based on TmP_yPb as Interlayer

作　　者：王振[1] 王培[1] 陈爱 谢嘉凤 袁军[1] 袁素真[1] 

机构地区：[1]重庆邮电大学光电工程学院,重庆400065

出　　处：《半导体光电》2018年第4期482-485,共4页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(61604027);重庆市教委科学技术研究项目(KJ1600418);重庆市基础与前沿研究计划项目(cstc2016jcyjA0272;cstc2016jcyjA2063)

摘　　要：基于三原色白光器件ITO/NPB/TCTA/Ir(MDQ)2(acac)∶TCTA/TCTA/FIrpic∶TmPyPb/Ir(ppy)3∶TmPyPb/TmPyPb/LiF/Al,通过在其绿色与蓝色发光层之间插入不同厚度的TmPyPb,研究了该插入层的厚度对器件色纯度的影响。研究表明,插入层厚度的改变能够影响能量转移及调节激子的分布,当插入层厚度为4nm时,器件色坐标为(0.33,0.36),最大发光效率达11.58cd/A。The effects of interlayer on color purity were studied by inserting different thickness of TmPyPb into the interface between blue and green emissions based on the structure of ITO/NPB/TCTA/Ir（MDQ）2（acac）∶TCTA/TCTA/FIrpic∶TmPyPb/Ir（ppy）3∶TmPyPb/TmPyPb/LiF/Al.The results show that the distribution of exciton and energy transfer can be adjusted and influenced by the thickness of interlayer. WOLED with peak efficiency of11.58 cd/A and CIE coordinates of（0.33,0.36）can be obtained when the thickness is 4 nm.

关 键 词：三原色 白光 插入层 能量转移 

分 类 号：TN383.1[电子电信—物理电子学]