光学学报, 2014, 34 (10): 1023002, 网络出版: 2014-08-26
独立寻址的色温可调白光有机电致发光二极管
Individually Addressable Color-Tuning White Organic Light-Emitting Diodes
光学器件 白光有机电致发光二极管 叠层结构 色温 optical devices white organic light-emitting device tandem structure color temperature
摘要
提出了一种利用Ag/Al电极作为叠层结构的连接层,有效调控白色有机电致发光器件(WOLEDs)的发射光谱和提高器件的发光效率的新方法。当连接层厚度从9 nm降到5 nm,白光区域内的色坐标从(0.27, 0.29)变化到(0.38, 0.31)。此外,通过调控任意色度的互补色(蓝黄)WOLEDs,成功地制备了色温从8009 K到4539 K的可以独立寻址的器件。最后,论文讨论了基于独立寻址实现色温可控的红绿蓝三基色WOLEDs的光电性能。
Abstract
This paper proposes a novel method to control the emission spectrum of the white organic light-emitting devices (WOLEDs) and improve the device efficiency, which uses Al/Ag as an interconnect layer of the stacked WOLEDs. When the interconnection layer decreases to 5 nm from 9 nm, the Commission Internationale de I′Eclairage coordinates change to (0.38, 0.31) from (0.27, 0.29) within the white-light region. Moreover, we have successfully achieved the complementary WOLEDs (blue and orange) with the desired color temperature (CT), which varies from 8009 K to 4539 K, demonstrating that the CT can be regulated by individual cells. Finally, the paper discusses the optical-electrical characteristics of CT-controllable RGB WOLEDs based on individually addressable method.
张朝, 郭坤平, 林洋, 徐韬, 张建华, 魏斌. 独立寻址的色温可调白光有机电致发光二极管[J]. 光学学报, 2014, 34(10): 1023002. Zhang Chao, Guo Kunping, Lin Yang, Xu Tao, Zhang Jianhua, Wei Bin. Individually Addressable Color-Tuning White Organic Light-Emitting Diodes[J]. Acta Optica Sinica, 2014, 34(10): 1023002.