HAT-CN作为空穴注入层的高效白色荧光有机电致发光二极管(英文)  被引量:7

High Efficiency White Fluorescent Organic Light-Emitting Diodes with HAT-CN Hole Injection Layer

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作  者:张静[1] 张方辉[1] 阎洪刚[1] 

机构地区:[1]陕西科技大学电气与信息工程学院,陕西西安710021

出  处:《液晶与显示》2011年第4期490-495,共6页Chinese Journal of Liquid Crystals and Displays

基  金:国家自然科学基金(No.61076066);陕西科技大学博士基金(No.BJ09-07);陕西科技大学自然科学基金(No.ZX09-31)

摘  要:制作了HAT-CN作为空穴注入层的蓝、黄二基色分离的堆叠式高效有机发光二极管,器件结构为:ITO/2-TNATA或HAT-CN(x nm)/NPB(25nm)/ADN(30nm)∶TBPE(2%)∶DCJTB(1%)/Alq3(20nm)/LiF(1nm)/Al(100nm)。实验结果表明,HAT-CN对载流子的注入和色纯度的影响很明显。相比于传统器件将CuPc和2-TNATA作为空穴注入层,HAT-CN作为空穴注入层得到了更高的效率和色纯度,CIE色坐标x=0.330 9,y=0.347 2,电流效率达到6.4cd/A。This paper investigated a high efficiency stacked white fluorescent organic light emitting diodes consisting of separate blue and yellow elements with a 1, 4, 5, 8, 9, 11-hexaazatriphenylene-hexacar bonitril (HAT-CN) hole injection layer. The configurations of the devices are ITO/2-TNATA or HAT-CN(χ nm)/NPB (25 nm)/ADN (30 nm) :TBPE (2%/60) :DCJTB(1%)/Alq3 (20 nm)/LiF (1 nm)/A1 (100 nm). According to the experimental result, the effect of HAT-CN film on carrier injection and color purity were significant. This work obtained a higher efficiency and color purity for the WOLED with HAT-CN layer, as compared to the conventional devices with copper phthalocyanine (CuPc) or 2-TNATA materials as a hole injection layer. It shows pure-white light emitting with 1931 CIE chromaticity coordinates .χ=O. 330 9, v=O. 347 2, and a current efficiency of6.4cd/A

关 键 词:HAT-CN 白色有机电致发光器件 电学特性 光学特性 

分 类 号:TN383.1[电子电信—物理电子学]

 

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