Low-drive-voltage OLEDs with a Novel Cohost Electron Transport Layer

摘要：

We demonstrated efficient electron injection and transport in organic light-emitting diodes using an electron-transport layer composed of 4, 7-diphenyl-1, 10-phenanthroline (BPhen) with 8-hydroxy-quinolinato lithium (Liq) co-deposited layer. Based on cohost strategy, a low-voltage driving of OLEDs with the structure of ITO/m-MTDATA/NPB/Alq/Liq (33％): Bphen/LiF/Al has been achieved. It is found that the power efficiency is enhanced by ～20％ while driving voltage is reduced by ～15％ as compared to the control device. Therefore this strategy with the judicial doping concentration of Liq greatly increases the electron conductivity in ETL, leading to the lowering the operating voltage and enhancing the power efficiency of the OLEDs.

关键词： Organic Light Emitting Diodes Electron Injection and Transport Low-voltage Driving

作者: F.X. Wei M. A. Khan X.B. Zhang J. Cao W.Q. Zhu X. Y. Jiang Z. L. Zhang

作者单位: Key Laboratory of Advanced Display and System Application,Ministry of Education,Shanghai University,Shanghai 200072, China;Department of Materials Science, Shanghai University,Jiading Campus, Shanghai 201800, China

会议类型: 国际会议

会议名称: 2007亚洲显示国际会议（AD07）

会议地点: 上海

会议语种:英文

页码: 410-413

在线出版日期: 2007-03-12（万方平台首次上网日期，不代表论文的发表时间）