Acta Phys. -Chim. Sin. ›› 2016, Vol. 32 ›› Issue (9): 2346-2354.doi: 10.3866/PKU.WHXB201605163

• ARTICLE • Previous Articles     Next Articles

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)

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