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首页> 外文期刊>Advanced Functional Materials >Highly Efficient Yellow Organic Light Emitting Diode with a Novel Wet- and Dry-Process Feasible Iridium Complex Emitter
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Highly Efficient Yellow Organic Light Emitting Diode with a Novel Wet- and Dry-Process Feasible Iridium Complex Emitter

机译：具有新型湿法和干法可行的铱配合物发射极的高效黄色有机发光二极管

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摘要

Yellow emission is crucial in RGBY display technology and in fabricating physiologically friendly, low color-temperature lighting sources. Emitters with both wet- and dry-process feasibility are highly desirable to fabricate, respectively, high-quality devices via vapor deposition and cost-effective, large-area devices via roll-to-roll fabrication. Here, high-efficiency organic light-emitting diodes with a novel wet- and dry-process feasible yellow-emitting iridium complex, bis[5-methyl-7-fluoro-5H-benzo(c)(1,5) naphthyridin-6-one]iridium (picolinate), are demonstrated. By spin coating, the device shows, at 1000 cd m~(-2), an external quantum efficiency (EQE) of 18.5% with an efficacy of 52.3 lm W~(-1) the highest among all reported yellow devices via wet-process, while using vapor deposition, the EQE is 22.6% with a 75.1 lm W~(-1) efficacy, the highest among all dry-processed counterparts. The high efficiency may be attributed to the replacement of the hydrogen atom with a fluorine atom on a 2-substitutional site in the emitter to prevent dense molecular packing-caused self-quenching and to reduce radiationless deactivation rates, leading to a high quantum yield (71%).
机译：黄色发射对于RGBY显示技术和制造生理上友好的低色温光源至关重要。具有湿法和干法可行性的发射极非常希望通过汽相沉积来制造高质量的器件，并通过卷对卷制造来制造具有成本效益的大面积器件。在这里，具有新型湿法和干法可行的发黄铱配合物双[5-甲基-7-氟-5H-苯并（c）（1,5）萘啶-6]的高效有机发光二极管-一个]铱（吡啶甲酸）。通过旋涂，该器件显示出在1000 cd m〜（-2）时，外部量子效率（EQE）为18.5％，功效为52.3 lm W〜（-1），在所有报道的黄色器件中，湿式在使用气相沉积的情况下，EQE为22.6％，功效为75.1 lm W〜（-1），在所有干法同行产品中最高。高效率可能归因于发射极中2个取代位点上的氢原子被氟原子取代，以防止致密的分子堆积引起的自猝灭并降低无辐射失活速率，从而导致高量子产率（ 71％）。

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  • 来源
    《Advanced Functional Materials》 |2014年第4期|555-562|共8页
  • 作者

    Jwo-Huei Jou; You-Xing Lin; Shiang-Hau Peng; Chieh-Ju Li; Yu-Min Yang; Chih-Lung Chin; Jing-Jong Shyue; Shih-Sheng Sun; Mandy Lee; Chien-Tien Chen; Ming-Chung Liu; Cheng-Chang Chen; Guan-Yu Chen; Jin-Han Wu; Cheng-Hung Li; Chao-Feng Sung; Mei-Ju Lee; Je-Ping Hu;

  • 作者单位

    Department of Materials Science and Engineering National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsin-Chu, 30013, Taiwan Republic of China;

    Department of Materials Science and Engineering National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsin-Chu, 30013, Taiwan Republic of China;

    Department of Materials Science and Engineering National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsin-Chu, 30013, Taiwan Republic of China;

    Department of Materials Science and Engineering National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsin-Chu, 30013, Taiwan Republic of China;

    Department of Materials Science and Engineering National Tsing Hua University No. 101, Section 2, Kuang-Fu Road, Hsin-Chu, 30013, Taiwan Republic of China;

    Material and Chemical Research Laboratories Industrial Technology Research Institute Hsin-Chu, 30013, Taiwan Republic of China;

    Research Center for Applied Sciences Academia Sinica Tai-Pei, 11529, Taiwan Republic of China;

    Institute of Chemistry Academia Sinica, Tai-Pei, 11529, Taiwan Republic of China;

    Institute of Chemistry Academia Sinica, Tai-Pei, 11529, Taiwan Republic of China;

    Department of Chemistry National Tsing Hua University Hsin-Chu, 30013, Taiwan Republic of China;

    Advance Lighting Technology Department Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Advance Lighting Technology Department Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Advance Lighting Technology Department Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Advance Lighting Technology Department Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Advance Lighting Technology Department Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Electronics and Optoelectronics Research Laboratories Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Electronics and Optoelectronics Research Laboratories Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

    Electronics and Optoelectronics Research Laboratories Industrial Technology Research Institute Hsin-Chu, 31040, Taiwan Republic of China;

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