The exploration of acceptor ratio in thermally activated delayed fluorescent donor for the effect on exciplex OLED

Ren Qingjiang; Zhao Yi; Liu Chang; Zhan Hongmei; Cheng Yanxiang; Li Wenlian

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The exploration of acceptor ratio in thermally activated delayed fluorescent donor for the effect on exciplex OLED

机译：热活化延迟荧光供体中受体比对Exciplex OLED效应的探索

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The effect of PO-T2T acceptor ratio in thermally activated delayed fluorescent donor of DMAC-DPS on exciplex organic light-emitting diodes (OLED) performance is explored herein. As the ratio decrease of PO-T2T acceptor, we found an obvious blue shift of electroluminescence (EL) spectra from 536 nm to 496 nm, while the EL efficiency maintain a high level with maximum current efficiency of 25.7-38.1 cd/A, power efficiency of 24.2-39.5 l m/W and external quantum efficiency (EQE) of 10.4-12.1%, respectively. That means a wide spectral move range of 40 nm without damaging device EQE in exciplex OLED could be realized. The strong interaction between exciplex induced from charge separation is responsible for the blue shift as acceptor ratio reduce.commentSuperscript/Subscript Available/comment

机译：本文探讨了DMAC-DPS对Exciplex有机发光二极管（OLED）性能的热活化延迟荧光供体中PO-T2T受体比的影响。随着PO-T2T受体的比率降低，我们发现从536nm至496nm的电致发光（EL）光谱的明显蓝色偏移，而EL效率保持高水平，最大电流效率为25.7-38.1dc / a，功率效率为24.2-39.5 LM / W和外部量子效率（EQE）分别为10.4-12.1％。这意味着可以实现40nm的宽光谱移动范围，而不会在Exciplex OLED中损坏装置EQE。从电荷分离引起的Exciplex之间的强相互作用负责蓝色班次作为受体比减少。<注释>上标/下标可用

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《Optical Materials》 |2021年第2期|110779.1-110779.5|共5页
作者
Ren Qingjiang; Zhao Yi; Liu Chang; Zhan Hongmei; Cheng Yanxiang; Li Wenlian;
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作者单位

Jilin Univ Coll Elect Sci & Engn State Key Lab Integrated Optoelect Changchun 130012 Peoples R China|Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Polymer Phys & Chem Changchun 130022 Peoples R China;

Jilin Univ Coll Elect Sci & Engn State Key Lab Integrated Optoelect Changchun 130012 Peoples R China;

Jilin Univ Coll Elect Sci & Engn State Key Lab Integrated Optoelect Changchun 130012 Peoples R China;

Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Polymer Phys & Chem Changchun 130022 Peoples R China;

Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Polymer Phys & Chem Changchun 130022 Peoples R China;

Chinese Acad Sci Changchun Inst Opt Fine Mech & Phys State Key Lab Luminescence & Applicat Changchun 130033 Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
OLED; Exciplex; Mixed ratio; Spectral move;

机译：OLED;Exciplex;混合比率;光谱移动;

The exploration of acceptor ratio in thermally activated delayed fluorescent donor for the effect on exciplex OLED

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