物理化学学报 >> 2016, Vol. 32 >> Issue (9): 2346-2354.doi: 10.3866/PKU.WHXB201605163

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可溶液加工的蒽醌/芴类双极性荧光材料的合成及其光电性质

陈昊1,杨涛1,李杰伟2,张新稳1,钱妍1,*(),解令海1,黄维1,2,*()   

  1. 1 南京邮电大学信息材料与纳米技术研究院暨有机电子与信息显示国家重点实验室培育基地,先进生物与化学制造协同创新分中心,南京210023
    2 南京工业大学先进材料研究院暨柔性电子重点实验室,先进生物与化学制造协同创新中心,南京211816
  • 收稿日期:2016-03-21 发布日期:2016-09-08
  • 通讯作者: 钱妍,黄维 E-mail:iamyqian@njupt.edu.cn;iamwhuang@njupt.edu.cn
  • 基金资助:
    国家重点基础研究发展规划项目(973)(2012CB723402);先进生物与化学制造协同创新中心(国家级2011协同创新中心);江苏高校优势学科建设工程(YX03001);江苏省有机电子和信息显示协同创新中心;国家自然科学基金(21373114);国家自然科学基金(21573111);江苏省青蓝工程与南京邮电大学“1311”人才项目资助

Synthesis and Optoelectronic Properties of a Solution-Processable Anthraquinone/Fluorene Hybrid Bipolar Fluorescent Material

Hao CHEN1,Tao YANG1,Jie-Wei LI2,Xin-Wen ZHANG1,Yan QIAN1,*(),Ling-Hai XIE1,Wei HUANG1,2,*()   

  1. 1 Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing University of Posts & Telecommunications, Nanjing 210023, P. R. China
    2 Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, P. R. China
  • Received:2016-03-21 Published:2016-09-08
  • Contact: Yan QIAN,Wei HUANG E-mail:iamyqian@njupt.edu.cn;iamwhuang@njupt.edu.cn
  • Supported by:
    the National Key Basic Research Program of China (973)(2012CB723402);Jiangsu National Synergistic Innovation Center (2011) for Advanced Materials (SICAM), China;Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), China(YX03001);Synergistic Innovation Center for Organic Electronics and Information Displays, China, National Natural Science Foundation of China;Synergistic Innovation Center for Organic Electronics and Information Displays, China, National Natural Science Foundation of China(21373114);Qing Lan Project and NUPT 1311 Project, China(21573111)

摘要:

通过Suzuki反应合成得到了一种可溶液加工的蒽醌/芴类双极性荧光材料2-蒽醌基-9, 9'-二异辛基芴(FAA),利用紫外吸收光谱和荧光发射光谱对其光物理性质进行了初步研究,并采用密度泛函理论计算方法分析了分子光物理性质的本质。通过单载流子器件的性能测试,证实了FAA具有较好的双极性传输特性。进而研究了该材料的电致发光性能,将其掺杂于主体材料1, 3-双(9-咔唑基)苯(mCP)中,利用旋涂法制备了结构为ITO(氧化铟锡)/PEDOT:PSS(聚3, 4-乙撑二氧噻吩:聚苯乙烯磺酸盐)/mCP:FAA/TmPyPb(1, 3, 5-三[(3-吡啶基)-3-苯基]苯)/LiF/Al的有机发光二极管。器件的启亮电压约为7.4 V,最大亮度为1719 cd·m-2,最大电流效率和最大功率效率分别为1.66 cd·A-1和0.56 lm·W-1;同时,结合器件各功能层的能级结构图,探讨了其电致发光机制。

关键词: 有机发光二极管, 可溶液加工, 芴类荧光材料, 双极性特性, 蒽醌

Abstract:

The solution-processable, anthraquinone-based, fluorene bipolar fluorescent material 2-(9, 9'-bis (2-ethylhexyl)-9H-fluoren-2-yl)anthracene-9, 10-dione (FAA) was synthesized via a Suzuki reaction. The photophysical properties of FAAwere subsequently investigated by acquiring absorption and photoluminescence spectra, and its optical properties were studied using computational density functional theory methods. Data obtained from single-carrier devices incorporating FAA demonstrated its well-matched bipolar charge-transport characteristics. The electroluminescence performance of this material was also examined by doping FAA into a 1, 3-di(9H-carbazol-9-yl)benzene (mCP) matrix as the light-emitting layer via spin coating to produce an organic light-emitting diode (OLED) with an indiumtin oxide (ITO)/poly(3, 4-ethylenedioxythiophene:poly(styrenesulfonate) (PEDOT:PSS)/mCP:FAA/3, 3'-(5'-(3-(pyridin-3-yl)phenyl)-[1, 1':3', 1"-terphen-yl]-3, 3"-diyl)dipyridine (TmPyPb)/ LiF/Al structure. This device exhibited a maximum luminance of 1719 cd·m-2 with a turn-on voltage of 7.4 V, along with maximum current and power efficiencies of 1.66 cd·A-1 and 0.56 lm·W-1, respectively. The electroluminescence mechanism of the OLED is discussed based on the energy level diagrams of the functional layers.

Key words: Organic light-emitting diode, Solution processing, Fluorescent material, Bipolar characteristics, Anthraquinone

MSC2000: 

  • O649