...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Microelectronics journal >Enhancement of red organic light-emitting diodes via cascade energy transfer
【24h】

Enhancement of red organic light-emitting diodes via cascade energy transfer

机译：通过级联能量转移增强红色有机发光二极管

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have demonstrated that efficient red electroluminescence is obtained via cascade energy transfer from Alq to fluorescent dye Coumarin(C545) and then from C545 to 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB). The cell structure was indium tin oxide (ITO)/ N,N'-bis-(1-naphenyl)-N,N'-biphenyl-1,1'-biphenyl-4-4'-diamine (NPB)/ tris (8-hydroxyquino-line) aluminum (Alq): C545: DCJTB/Alq/LiF/Al. An additional dopant, C545, was used to assist the energy transfer from Alq to the red dopant. Compared with the devices where the emitting layer is only composed of Alq and DCJTB, the emission efficiency and color purity were improved. We attribute these improvements to the assistant dopant C545 which leads to the more efficient energy transfer from Alq to DCJTB. The co-doping system is a promising method for red organic light-emitting diodes.
机译：我们已经证明，通过从Alq到荧光染料香豆素（C545）然后从C545到4-（二氰基亚甲基）-2-叔丁基-6-（1,1,7,7-四甲基十烷基（-9-烯基）-4H-吡喃（DCJTB）。电池结构为氧化铟锡（ITO）/ N，N'-双-（1-萘苯基）-N，N'-联苯-1,1'-联苯-4-4'-二胺（NPB）/ tris（ 8-羟基喹啉铝）（C545）：DCJTB / Alq / LiF / Al。另一种掺杂剂C545用于协助能量从Alq转移到红色掺杂剂。与发光层仅由Alq和DCJTB组成的器件相比，发光效率和色纯度得到了改善。我们将这些改进归功于辅助掺杂剂C545，它可以使Alq到DCJTB的能量传输效率更高。共掺杂系统是用于红色有机发光二极管的有前途的方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号