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首页> 外文期刊>RSC Advances >Polyfluorene-based white light conjugated polymers incorporating orange iridium(III) complexes: the effect of steric configuration on their photophysical and electroluminescent properties
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Polyfluorene-based white light conjugated polymers incorporating orange iridium(III) complexes: the effect of steric configuration on their photophysical and electroluminescent properties

机译：掺入橙色铱（III）复合物的聚芴基白光共轭聚合物：空间构型对其光学和电致发光性能的影响

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摘要

Different kinds of polyfluorene-based white light conjugated polymers with phosphorescent iridium(III) complexes as orange emission groups and polyfluorene as blue emission groups were designed and synthesized. On the basis of adjusting substituent positions on iridium(III) complexes, the conjugated polymers exhibited different steric configurations, i.e. hyperbranched and linear structures, and the PL emission peaks of iridium(III) complexes had a significant change. Compared to linear conjugated polymers, hyperbranched white light conjugated polymers showed the best thermal stability and film forming properties. The white light single-emissive-layer devices with simplified configuration were also prepared in a wet process. All these devices realized good electroluminescence, especially the hyperbranched conjugated polymers in which the roll off phenomenon at high current density was effectively suppressed. Furthermore, EL spectra of hyperbranched polymers exhibited good stability at different driving voltages. A maximum luminance of 2469 cd m(-2), a maximum current efficiency of 1.73 cd A(-1) and the commission internationale de l'Eclairage (CIE) coordinates of (0.25, 0.23) showed white light was achieved from the HPF-Ir10 devices.
机译：设计并合成了与橙色发射基团的磷光铱（III）配合物的不同种类的多氟烯类白光共轭聚合物作为橙色发射基团和多氟烯。在调节对铱（III）络合物上的取代基位置的基础上，缀合的聚合物表现出不同的空间构型，即超支化和线性结构，铱（III）复合物的PL发射峰具有显着的变化。与线性共轭聚合物相比，超支化白光共轭聚合物显示出最佳的热稳定性和成膜性能。在湿法中也制备具有简化配置的白光单发光层装置。所有这些器件都实现了良好的电致发光，尤其是高电流密度下滚动现象的超支缀合物的良好电致发光。此外，超支化聚合物的EL光谱在不同的驱动电压下表现出良好的稳定性。最大亮度为2469cd m（-2），最大电流效率为1.73cd a（-1）和委员会Internationale de l'EclaReage（CIE）坐标（0.25,0.23）显示白光，从HPF中实现了白光-ir10设备。

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  • 来源
    《RSC Advances》 |2018年第3期|共9页
  • 作者

    Sun Jing; Wu Dongyu; Gao Long; Hou Minna; Lu Guojing; Li Jie; Zhang Xinwen; Miao Yanqin; Wang Hua; Xu Bingshe;

  • 作者单位

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Nanjing Univ Posts &

    Telecommun Key Lab Organ Elect &

    Informat Displays Nanjing 210023 Jiangsu Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

    Taiyuan Univ Technol Minist Educ Key Lab Interface Sci &

    Engn Adv Mat Taiyuan 030024 Shanxi Peoples R China;

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  • 正文语种 eng
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