Synthesis and Application of a New Bipolar Host for Organic Light-Emitting Devices

doi:10.7517/j.issn.1674-0475.2010.06.457

Abstract

Abstract: A new bipolar host material C1PBD,constituted by carbazole and oxadiazole groups,has been designed,synthesized and characterized.The optical and electrochemical properties of C1PBD prove this new bipolar host could be used as the blue fluorescence host.The OLED based on C1PBD and TBPe exhibited a low turn-on voltage(3.2 V with a brightness of 1 cd·m^-2),a high efficiency(2.26 cd/A for the max current efficiency),and a stable blue emission with a CIE coordinate of(0.14,0.14).

Key words: OLED, bipolar host material, blue fluorescence

CLC Number:

ZHENG Cai-jun, HE Jian, ZHAO Wei-ming, YE Jun, HUANG Da, ZHANG Xiao-hong. Synthesis and Application of a New Bipolar Host for Organic Light-Emitting Devices[J]. Imaging Science and Photochemistry, 2010, 28(6): 457-464.

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