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首页> 外文期刊>ACS applied materials & interfaces >Versatile Donor-pi-Acceptor-Type Aggregation-Enhanced Emission Active Fluorophores as Both Highly Efficient Nondoped Emitter and Excellent Host
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Versatile Donor-pi-Acceptor-Type Aggregation-Enhanced Emission Active Fluorophores as Both Highly Efficient Nondoped Emitter and Excellent Host

机译：多功能的供体 - PI-Activeor型聚集 - 增强的发射活性荧光团，如高效的Nondoped发射器和优秀的主机

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摘要

By employing triphenylamine (TPA) and/or carbazole as donor and cyano group as acceptor, three donor-pi-acceptor (D-pi-A)-type fluorophores, 4,6-di(4-(diphenylamino)phenyl)isophthalonitrile (DTPAIPN), 4-(4-(diphenylamino)phenyl)-6-(3,5-(9,9'-dicarbazolyl)phenyl)isophthalonitrile (TPAmCPIPN), and 4,6-di(3,5-(9,9'-dicarbazolyl)phenyl)isophthalonitrile (DmCPIPN), were designed, synthesized, and characterized for their thermal, photophysical, electrochemical, and electroluminescent properties. All three compounds exhibited excellent thermal and morphological stabilities with thermal decomposition (T-d) and glass transition temperature (T-g) values ranging from 396 to 516 degrees C and from 114 to 211 degrees C, respectively. The investigation into the photophysical properties revealed the aggregation-enhanced emission (AEE) feature of these chromophores. The performances of the nondoped devices were significantly improved as compared to those of the doped devices, further confirming the AEE nature. In particular, DmCPIPN-based nondoped device rendered the maximum current efficiency (CE), power efficiency (PE), and external quantum efficiency (EQE) values of 26.6 cd A(-1), 22.4 lm W-1, and 8.3%, respectively, in comparison with 9.1 cd A(-1), 4.9 Im W-1, and 4.2% for the doped device. The versatility of these new luminogens was demonstrated through the utilization of them as host for highly efficient red phosphorescent organic light-emitting diodes (PHOLEDs). The EQE of the DmCPIPN-hosted device reached as high as 19.3% with a reduced efficiency roll-off of 10.3% at 1000 cd m-(2). These results demonstrate that the new luminogens of this work can be used as both nondoped emitter and host for high-performance OLEDs, which facilitates the development of multifunctional materials for OLEDs applications.
机译：通过使用三苯胺（TPA）和/或咔唑作为供体和氰基作为受体，三种供体 - PI-Acceptor（D-PI-A）型荧光团，4,6-二（4-（二苯基氨基）苯基）脱氨腈（ DTPAIPN），4-（4-（二苯基）苯基）-6-（3,5-（9,9'-二氨基唑基）苯基）苯二腈（TPAMCPIPN）和4,6-二（3,5-（9， 9'-二氨基唑唑基）苯基）双邻苯二甲腈（DMCPIPN），被设计，合成，其特征在于它们的热，光药，电化学和电致发光性。所有三种化合物的热分解（T-D）和玻璃化转变温度（T-G）值分别表现出优异的热和形态稳定性，分别为396至516℃和114至211摄氏度。对光学性质的调查揭示了这些发色团的聚集增强型发射（AEE）特征。与掺杂器件相比，掺杂器件的性能显着提高，进一步证实了AEE自然。特别地，基于DMCPIP的NONDOPED设备呈现最大电流效率（CE），功率效率（PE）和外部量子效率（EQE）值为26.6cd A（-1），22.4 Lm W-1和8.3％，与9.1 CD A（-1），4.9 IM W-1和4.2％相比，分别对掺杂装置相比。通过使用它们作为高效红磷光有机发光二极管（Pholeds）的主体来证明这些新的发光转变的多功能性。 DMCPIPN托管装置的EQE高达19.3％，效率降低为10.3％，在1000℃-（2）。这些结果表明，这项工作的新发光转变可用作非偏移的发射器和高性能OLED的主机，这有利于OLEDS应用的多功能材料的开发。

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  • 来源
    《ACS applied materials & interfaces》 |2017年第38期|共11页
  • 作者

    Wu Chao; Wu Zhongbin; Wang Binyan; Li Xiaoping; Zhao Na; Hu Jianyong; Ma Dongge; Wang Qiang;

  • 作者单位

    Shaanxi Normal Univ Sch Mat Sci &

    Engn Key Lab Appl Surface &

    Colloid Chem Natl Minist Educ Shaanxi Key Lab Adv Energy Devic Xian 710119 Shaanxi Peoples R China;

    Univ Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Polymer Phys &

    Chem Changchun 130022 Jilin Peoples R China;

    Shaanxi Normal Univ Sch Mat Sci &

    Engn Key Lab Appl Surface &

    Colloid Chem Natl Minist Educ Shaanxi Key Lab Adv Energy Devic Xian 710119 Shaanxi Peoples R China;

    Qufu Normal Univ Coll Chem &

    Chem Engn Qufu 273165 Peoples R China;

    Shaanxi Normal Univ Key Lab Macromol Sci Shaanxi Prov Sch Chem &

    Chem Engn Xian 710119 Shaanxi Peoples R China;

    Shaanxi Normal Univ Sch Mat Sci &

    Engn Key Lab Appl Surface &

    Colloid Chem Natl Minist Educ Shaanxi Key Lab Adv Energy Devic Xian 710119 Shaanxi Peoples R China;

    South China Univ Technol State Key Lab Luminescent Mat &

    Devices Inst Polymer Optoelect Mat &

    Devices Guangzhou 510640 Guangdong Peoples R China;

    Shaanxi Normal Univ Sch Mat Sci &

    Engn Key Lab Appl Surface &

    Colloid Chem Natl Minist Educ Shaanxi Key Lab Adv Energy Devic Xian 710119 Shaanxi Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学工业;
  • 关键词

    aggregation-enhanced emission; organic light-emitting diode; nondoped emitter; host;

    机译：聚集增强的发射;有机发光二极管;非oped发射器;主持人;

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