Low-voltage and high-efficiency stacked white organic light-emitting diodes

被引:0
作者
Wei, Fuxiang [1 ]
Fang, L. [1 ]
Huang, Y. [1 ]
机构
[1] China Univ Min & Technol, Sch Mat Sci & Engn, Xuzhou 221008, Jiangsu, Peoples R China
来源
OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS | 2010年 / 4卷 / 05期
基金
中国国家自然科学基金;
关键词
Organic emitting diode; Low-voltage; Stack; White EL devices;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a white stacked organic light-emitting device (SOLED) with high efficiency and low drive voltage by using Bphen:Li/WO3 as the interconnecting layer. The SOLED have been fabricated by connecting two low-voltage driving white units with conductive transport layers. The stacked two-unit device produced two higher luminance efficiency than that expected of a single-unit device. A maximum efficiency of 17cd/A was achieved by the stacked device comprised of two white-fluorescent OLEDs. It is also found that the power efficiency of stacked white organic light-emitting device is enhanced by 53% as compared to the control device.
引用
收藏
页码:620 / 623
页数:4
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