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首页> 外文期刊>Advanced Optical Materials >High-Performance Hybrid White OLEDs with Ultra-Stable Emission Color and Small Efficiency Roll-Off Achieved by Incorporating a Deep-Blue Fluorescent Neat Film
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High-Performance Hybrid White OLEDs with Ultra-Stable Emission Color and Small Efficiency Roll-Off Achieved by Incorporating a Deep-Blue Fluorescent Neat Film

机译：通过结合深蓝色荧光纯膜实现具有超稳定发射颜色的高性能混合白色OLED和小效率滚动

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摘要

Organic blue luminescent materials play a vital role in the fabrication of full-color displays and white lighting devices, but high-efficiency blue emitters that meet commercial demands are still quite insufficient. Herein, the authors wish to report the design and synthesis of four bipolar deep-blue luminogens consisting of an anthracene core and various functional groups. Their photophysical properties, electronic structures, electrochemical behavior, thermal stability, carrier transport ability, and electroluminescence performance are systematically studied. The nondoped organic light-emitting diode (OLED) based on DPAC-TAn-BI radiates stable deep-blue light [Commission Internationale de l'Eclairage (CIEx,y) = 0.15, 0.15] with a high external quantum efficiency (eta(ext)) of 5.81%. Moreover, efficient two-color hybrid warm white OLEDs are achieved using DPAC-TAn-BI neat film as a blue-emitting layer, providing an excellent eta(ext) of 27.6%, a small efficiency roll-off of 2.9% at 1000 cd m(-2), and ultra-stable emission spectra with tiny CIEx,y variation of (0.01, 0.01) from 100 to 10 000 cd m(-2). These results demonstrate that the deep-blue luminogens are strong candidates for applications in blue and white OLEDs.
机译：有机蓝色发光材料在全彩色显示器和白色照明设备的制造中起着重要作用，但符合商业需求的高效蓝色发射器仍然是不够的。在此，作者希望报告由蒽芯和各种官能团组成的四双极深蓝色光学元的设计和合成。系统地研究了它们的光物理性质，电子结构，电化学行为，热稳定性，载流能和电致发光性能。基于DPAC-TAN-BI的NONDOPED有机发光二极管（OLED）稳定的深蓝色光线[委托Internationale de l'EclaReage（Ciex，Y）= 0.15,0.15]，具有高外部量子效率（ETA（ETA（ETA） ）））5.81％。此外，使用DPAC-TAN-BI整洁膜作为蓝色发光层实现了高效的双色杂交暖白果，提供了27.6％的优异ETA（ex），效率为2.9％，在1000℃下为2.9％ M（2），和超稳定的发射光谱，带有微小Ciex，y变化（0.01,0.01）的100-10000cd m（-2）。这些结果表明，深蓝色的发光剂是蓝色和白色OLED中的应用的强烈候选者。

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  • 来源
    《Advanced Optical Materials》 |2021年第15期|2100298.1-2100298.11|共11页
  • 作者

    Wu Zilong; Zhu Xiangyu; Li Yinghao; Chen Hao; Zhuang Zeyan; Shen Pingchuan; Zeng Jiajie; Chi Jiajin; Ma Dongge; Zhao Zujin; Tang Ben Zhong;

  • 作者单位

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China;

    South China Univ Technol Guangdong Prov Key Lab Luminescence Mol Aggregate State Key Lab Luminescent Mat & Devices Guangzhou 510640 Peoples R China|Hong Kong Univ Sci & Technol Dept Chem Kowloon Clear Water Bay Hong Kong 999077 Peoples R China|AIE Inst Guangzhou Dev Dist Guangzhou 510530 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    anthracene; bipolar carrier transport; blue luminogens; blue organic light#8208; emitting diodes; hybrid white organic light#8208; emitting diodes;

    机译：蒽;双极载体运输;蓝色发光剂;蓝色有机光和＃8208;发射二极管;混合白色有机光和＃8208;发光二极管;

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