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电泵浦有机发光二极管衬底侧向辐射研究

赵变丽 王晶 李文文 张静 孙宁 王登科 江楠

赵变丽, 王晶, 李文文, 张静, 孙宁, 王登科, 江楠. 电泵浦有机发光二极管衬底侧向辐射研究[J]. 中国光学(中英文). doi: 10.37188/CO.2023-0190
引用本文: 赵变丽, 王晶, 李文文, 张静, 孙宁, 王登科, 江楠. 电泵浦有机发光二极管衬底侧向辐射研究[J]. 中国光学(中英文). doi: 10.37188/CO.2023-0190
ZHAO Bian-li, WANG Jing, LI Wen-wen, ZHANG Jing, SUN Ning, WANG Deng-ke, JIANG Nan. Study on substrate lateral radiation of electrically pumped organic light-emitting diodes[J]. Chinese Optics. doi: 10.37188/CO.2023-0190
Citation: ZHAO Bian-li, WANG Jing, LI Wen-wen, ZHANG Jing, SUN Ning, WANG Deng-ke, JIANG Nan. Study on substrate lateral radiation of electrically pumped organic light-emitting diodes[J]. Chinese Optics. doi: 10.37188/CO.2023-0190

电泵浦有机发光二极管衬底侧向辐射研究

doi: 10.37188/CO.2023-0190
基金项目: 国家自然科学基金(No. 61805211)
详细信息
    作者简介:

    赵变丽(1997—),女,宁夏回族自治区固原市,云南大学博士研究生在读,硕士期间主要研究方向为有机半导体发光器件。E-mail:12020117041@mail.ynu.edu.cn

    江 楠(1977—),男,云南建水人,博士,副教授,2021年于云南大学获得博士学位,主要从事有机半导体器件及激光器研究。E-mail:jiangnan@ynu.edu.cn

  • 中图分类号: 0436

Study on substrate lateral radiation of electrically pumped organic light-emitting diodes

Funds: Supported by
More Information
  • 摘要:

    有机发光二极管衬底侧向辐射光谱与正向辐射光谱相比,存在明显的窄化现象。研究影响器件侧向辐射光谱窄化的因素,进一步减小辐射光谱的线宽,可为电泵浦有机发光二极管激光辐射的研究打下基础。本文研究了随有机发光二极管空穴传输层 NPB 厚度的变化,器件衬底侧向辐射光谱的半高宽、峰位以及偏振特性的变化情况。比较了有机发光二极管衬底边缘两侧蒸镀银膜与未蒸镀银膜的衬底侧向辐射光谱。发现蒸镀银膜时有机发光二极管的衬底侧向辐射光谱半高宽变窄,并且当空穴传输层 NPB 的厚度为 130 nm 时,器件衬底侧向辐射光谱半高宽低至 14 nm。说明器件衬底两侧存在银膜作为反射镜的情况下,衬底中侧向传播的光将受到光学谐振腔的作用。论文的研究结果为有机发光二极管幅射光谱的窄化和幅射光放大提供了一种新思路。

     

  • 图 1  不对称平板波导中的模式

    Figure 1.  Schematic illustration of a symmetric slab waveguide

    图 2  OLED 器件结构示意图

    Figure 2.  OLED Device configuration

    图 3  不同厚度Ag、Al膜反射率

    Figure 3.  Reflectance of Ag and Al films of different thickness

    图 4  电致发光光谱采集系统结构图

    Figure 4.  Structural diagram of the electroluminescence spectrum collection system

    图 5  NPB 厚度在45−300 nm 范围内的辐射光谱

    Figure 5.  Radiation spectra of NPB thickness in the range of 45−300 nm

    图 6  OLED 衬底侧向辐射光谱的偏振特性

    Figure 6.  Polarization characteristics of OLED substrate lateral radiation spectrum

    图 7  NPB 厚度在45−300 nm 范围内 OLED 的侧向发射光谱

    Figure 7.  Lateral emission spectra from OLED with the NPB thickness in the range of 45−300 nm

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  • 网络出版日期:  2024-05-15

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