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首页> 外文期刊>Applied physics express >Efficiency roll-off suppression in organic light-emitting diodes at high current densities using gold bowtie nanoantennas
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Efficiency roll-off suppression in organic light-emitting diodes at high current densities using gold bowtie nanoantennas

机译：使用金领结纳米天线在高电流密度下抑制有机发光二极管的效率滚降

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摘要

In this study, large-scale gold (Au) bowtie nanoantennas have been utilized to suppress the efficiency roll-off in organic light-emitting diodes (OLEDs) numerically and experimentally. Compared with the OLED without nanoantennas, the experimental roll-off ratio of the OLED with Au bowtie nanoantennas significantly decreases from 59.4 to 51.3% at a high current density of 1000 mA/cm~2. We attribute the roll-off suppression to the localized surface plasmon (LSP) effect, which leads to a shorter radiative lifetime. The insufficient coupling between radiated light and LSP resonance could also be improved by a strong resonance coupling between the tips of bowtie nanoantennas.
机译：在这项研究中，大规模金（Au）领结纳米天线已被用来在数值上和实验上抑制有机发光二极管（OLED）中的效率下降。与没有纳米天线的OLED相比，在1000 mA / cm〜2的高电流密度下，具有金领结纳米天线的OLED的实验滚降率从59.4％显着降低至51.3％。我们将滚降抑制归因于局部表面等离子体激元（LSP）效应，这导致较短的辐射寿命。蝴蝶结纳米天线尖端之间的强共振耦合也可以改善辐射光与LSP共振之间的耦合不足。

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  • 来源
    《Applied physics express》 |2016年第2期|022101.1-022101.4|共4页
  • 作者

    Yukun Zhao; Feng Yun; Zhaoxin Wu; Yufeng Li; Bo Jiao; Yaping Huang; Sanfeng Li; Lungang Feng; Maofeng Guo; Wen Ding; Ye Zhang; Juan Dou;

  • 作者单位

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Shaanxi Supernova Lighting Technology Co., Ltd., Xi'an, Shaanxi 710075, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Shaanxi Supernova Lighting Technology Co., Ltd., Xi'an, Shaanxi 710075, P. R. China;

    Key Laboratory of Physical Electronics and Devices of Ministry of Education and Shaanxi Provincial Key Laboratory of Photonics & Information Technology, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China,Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Solid-State Lighting Engineering Research Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China;

    Shaanxi Supernova Lighting Technology Co., Ltd., Xi'an, Shaanxi 710075, P. R. China;

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