首页> 中文期刊> 《中国物理快报:英文版》 >Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3:CuPc/DCM MultilayerStructure

Near-Infrared Emission from Organic Light-Emitting Diodes Based on Copper Phthalocyanine with a Periodically Arranged Alq3:CuPc/DCM MultilayerStructure

         

摘要

We demonstrate near-infrared organic light-emitting devices with a periodically arranged tris(8-quinolinolato)alumiHum(Alq3):copper phthalocyanine(CuPc)/4-(dicyanomethylene)-2-methy1-6-(4-dimethylaminost-yry)-4H-pyran (DCM) multilayer structure.DCM and A1q3 doped with CuPc were periodically deposited.Room-temperature electrophosphorescence was observed at about 1.1μm due to transitions from the first excited triplet state to the singlet ground state (T1-S0) of CuPc.In this device,we utilize the overlap between the Q band π-π* at about 625 nm of the absorption spectra of CuPc and the PL spectra of the DCM.The near-infrared emission intensity of the CuPc-doped A1q3 device with DCM increases about 2.5 times larger than that of the device without DCM.We attribute the efficiency enhancement to the better overlap between the PL spectra of DCM and the absorption spectra of CuPc.

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  • 来源
    《中国物理快报:英文版》 |2008年第2期|715-718|共4页
  • 作者单位

    State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun,130012;

    State Key Laboratory of Materials Modification by Laser,Ion,and Electron Beams,School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian,116024;

    State Key Laboratory of Materials Modification by Laser,Ion,and Electron Beams,School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian,116024;

    State Key Laboratory of Materials Modification by Laser,Ion,and Electron Beams,School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian,116024;

    State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun,130012;

    State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun,130012;

    Department of Chemical,Northeast Normal University,Changchun,130024;

    State Key Laboratory of Supramolecular,Department of Chemical,Jilin University,Changchun,130012;

    State Key Laboratory on Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun,130012;

    State Key Laboratory of Materials Modification by Laser,Ion,and Electron Beams,School of Physics and Optoelectronic Technology,Dalian University of Technology,Dalian,116024;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 物理学;
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