首页> 外文期刊>Journal of Materials Chemistry, C. materials for optical and electronic devices >Highly efficient ultra-flexible tandem organic light-emitting diodes adopting a non-doped charge generation unit
【24h】

Highly efficient ultra-flexible tandem organic light-emitting diodes adopting a non-doped charge generation unit

机译:高效的超柔性串联有机发光二极管采用非掺杂电荷产生单元

获取原文
获取原文并翻译 | 示例
       

摘要

Due to the voltage division of charge generation unit (CGU), the power efficiency of tandem organic light-emitting diodes (TOLEDs) is usually lower than that of the single-unit devices, which severely restricts the development and application of TOLEDs. Here, a significant improvement in power efficiency of TOLEDs is presented through adopting a non-doped CGU of LiF/Al/fullerene (C-60)/1,4,5,8,9,11-hexaazatriphenylene-hexacarbonitrile (HAT-CN)/N,N '-diphenyl-N,N '-bis(1-naphthyl)-1,1 '-biphenyl-4,4 '-diamine (NPB). The characteristics of current-voltage and impedance spectroscopy reveal that the non-doped CGU possesses fabulous charge generation and injection capabilities. The ultra-flexible tandem white OLEDs display a maximum power efficiency of 59 lm W-1, which is 32% higher than that of single white OLEDs. What's more meaningful, the ultra-flexible devices have good mechanical flexibility and durability. After being bent for 3000 cycles at a radius of similar to 3 mm, the devices retain similar to 90% of the original luminance.
机译:由于电荷产生单元(CGU)的电压分配,串联有机发光二极管(TOLED)的功率效率通常低于单单元器件,这严重制约了TOLED的发展和应用。在这里,通过采用LiF/Al/富勒烯(C-60)/1,4,5,8,9,11-六氮杂苯并六碳三烯(HAT-CN)/N,N'-二苯基-N,N'-双(1-萘基)-1,1'-联苯-4,4'-二胺(NPB)的非掺杂CGU,TOLEDs的功率效率显著提高。电流-电压和阻抗谱的特性表明,非掺杂CGU具有极好的电荷产生和注入能力。超柔性串联白色OLED的最大功率效率为59 lm W-1,比单一白色OLED高32%。更有意义的是,超柔性设备具有良好的机械灵活性和耐久性。在以类似于3 mm的半径弯曲3000个周期后,设备保持接近原始亮度的90%。

著录项

  • 来源
  • 作者单位

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

    Nanjing Univ Posts &

    Telecommun NUPT State Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理化学(理论化学)、化学物理学;
  • 关键词

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