半导体光电, 2018, 39 (4): 482, 网络出版: 2018-08-29
插入层TmPyPb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 TmPyPb as Interlayer
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。
Abstract
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 of 11.58cd/A and CIE coordinates of (0.33,0.36) can be obtained when the thickness is 4nm.
王振, 王培, 陈爱, 谢嘉凤, 袁军, 袁素真. 插入层TmPyPb对白色有机电致发光二极管色纯度的影响[J]. 半导体光电, 2018, 39(4): 482. WANG Zhen, WANG Pei, CHEN Ai, XIE Jiafeng, YUAN Jun, YUAN Suzhen. Improvement of Color Purity in White OLED Based on TmPyPb as Interlayer[J]. Semiconductor Optoelectronics, 2018, 39(4): 482.
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