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Straight forward synthesis of conjugated polymers for deep red to NIR PLED containing chlorine atoms on the backbone

机译:深红色至主链中含氯原子的近红外至NIR PLED的共轭聚合物的直接合成

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摘要

High molecular weight and non-crosslinking conjugated donor-acceptor copolymers with chlorine on the backbones were straight forward synthesized for the first time under Stille condensation reaction by using the different reaction activities between chlorine and bromine atoms. The chlorine-bearing polymers exhibited much lower LUMO, larger Stokes shift and lower self-absorption compared with the non-chloride analogue, for the electron affinity and large steric hindrance of chlorine atoms. Deep red to NIR emission centered at 698 nm was obtained with brightness about 1500 cd/m~2 and centered at 708 nm was obtained with brightness over 400 cd/m~2 based on dopant/host system.
机译:利用在氯和溴原子之间不同的反应活性,在斯蒂勒缩合反应下,首次直接合成了在主链上带有氯的高分子量非交联共轭供体-受体共聚物。与非氯化物类似物相比,含氯聚合物表现出低得多的LUMO,更大的斯托克斯位移和更低的自吸收性,这是由于氯原子的电子亲和力和大的位阻。基于掺杂剂/宿主系统,获得了以698 nm为中心的深红色至NIR发射,亮度约为1500 cd / m〜2,并且获得了以400 cd / m〜2为中心的亮度高于708 cd。

著录项

  • 来源
    《Organic Electronics》 |2014年第7期|1440-1447|共8页
  • 作者

    Xiang Gao; Bin Hu; Guoli Tu;

  • 作者单位

    School of Optical and Electronic Information & Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, PR China;

    School of Optical and Electronic Information & Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, PR China,Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA;

    School of Optical and Electronic Information & Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Chlorine; Semiconductors; Deep red to NIR light-emitting diodes;

    机译:氯;半导体;深红色至NIR发光二极管;

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