芴类衍生物有机电致发光器件中的激基复合物

被引：2

作者：

张巍 ^{[1
]}

于军胜 ^{[1
]}

李璐 ^{[1
]}

蒋亚东 ^{[1
]}

张清 ^{[2
]}

机构：

[1] 电子科技大学光电信息学院电子薄膜与集成器件国家重点实验室

[2] 上海交通大学化学化工学院高分子科学与工程系

来源：

光电子激光. | 2009年 / 20卷 / 09期

关键词：

有机电致发光(EL); 芴类小分子; 激基复合物; 荧光发光(PL)光谱; 吸收光谱;

D O I：

10.16136/j.joel.2009.09.007

中图分类号：

TN383.1 [];

学科分类号：

摘要：

利用紫外-可见光吸收光谱和荧光发光(PL)光谱,研究了新型芴类小分子材料2,3-bis(9,9-dihexyl-9H-flu-oren-2-yl)-6,7-difluoroquinoxaline(F2Py)的本征光谱特性,并制备了基于F2Py的有机电致发光器件(OLEDs),讨论了器件的电致发光(EL)光谱。结果表明,F2Py在溶液状态下的本征PL峰值位于452 nm,在薄膜状态下的本征PL峰值位于448 nm,而F2Py与NPB的混合物的PL发光峰在544 nm。在器件的EL光谱中,观察到了位于530～550 nm范围的激基复合物发光峰,以及来自F2Py与NPB激子发光的共同作用形成的位于430nm左右的肩峰。当F2Py层厚度为50 nm时,器件的启亮电压为17 V,最高亮度为58 cd/m2;而当F2Py厚度为20 nm并加入了Alq3(10 nm)做电子传输层(ETL)时,器件启亮电压为8 V,最高亮度为5030 cd/m2,EL性能大大提高。

引用

页码：1145 / 1149

页数：5

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