串联白光OLED色温调整  

Color Temperature Adjustment of Tandem White OLEDs

作　　者：罡一帆 王忆[1] Gang Yifan;Wang Yi(School of Applied Physics and Materials,Wuyi University,Jiangmen 529020,China)

机构地区：[1]五邑大学应用物理与材料学院,广东江门529020

出　　处：《微纳电子技术》2021年第6期459-468,共10页Micronanoelectronic Technology

基　　金：广东省科技计划资助项目(粤科规财字[2015]110号、粤科规财字[2015]151号);广东省高等教育光电子材料与应用重点实验室资助项目(2017ksys011);广东省高校科研创新团队资助项目(2015KCXTD027);中山科技项目([2016]224号)。

摘　　要：白光有机电致发光器件(OLED)在实际应用中根据不同的应用场景而有不同的色温要求。该白光OLED具有串联混合结构,包括荧光蓝光发射单元和以Pt磷光材料为客体的黄光发光单元。利用串联器件中存在的弱微腔效应以及所用Pt磷光材料的掺杂特性,通过改变串联结构中空穴传输层的厚度、电荷产生层中n型结构的厚度、调整Pt磷光客体材料在黄光发光单元中的质量分数对串联白光OLED色温进行了调整。通过以上方法,白光OLED的色温可以在3000~10000 K内进行调整,以满足不同的实际应用需求。White organic light-emitting devices(OLEDs)have different color temperature requirements in practical applications according to different application scenes.The white OLEDs have a tandem hybrid architecture composed of a fluorescent blue light emitting unit and a yellow light emitting unit with Pt phosphorescent material as the object.Based on the weak microcavity effect in tandem devices and the doping properties of the Pt phosphorescent materials,the color temperature of tandem white OLEDs was adjusted by changing the thickness of hole transporting layer in tandem structure,thickness of n-type structure in the charge generating layer and the mass fraction of Pt phosphorescent object materials in the yellow light emitting unit.Through the above methods,the color temperature of the white OLEDs can be adjusted in the range of 3000-10000 K to meet the needs of different practical applications.

关 键 词：白光有机电致发光器件(OLED) 弱微腔效应 Pt磷光材料 色温 串联结构 

分 类 号：TN383[电子电信—物理电子学]