Organic electroluminescence cells based on thin films deposited by ultraviolet laser ablation

N. Matsumoto, H. Shima, T. Fujii, F. Kannari

    Research output: Contribution to journalArticle

    24 Citations (Scopus)

    Abstract

    Organic thin films of copper-phthalocyanine (CuPc) and aluminum tris-8-hydroxyquinline (Alq3) were fabricated via KrF laser ablation. In spite of poor crystallinity exhibited in the reconstructed organic films, the CuPc film still works as a hole-transport layer in electroluminescence cells based on the CuPc and Alq3 layers. Electroluminescence at ∼500 nm was obtained with a low initiation voltage of ∼12 V. There is no significant difference in electroluminescence performance for devices fabricated via laser ablation and thermal evaporation. Emission at ∼600 nm caused by energy transfer from Alq3 to 4-(Dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran (DCM) is also observed from a DCM-doped Alq3 emission layer.

    Original languageEnglish
    Pages (from-to)2469-2471
    Number of pages3
    JournalApplied Physics Letters
    Volume71
    Issue number17
    DOIs
    Publication statusPublished - 1997 Oct 27

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

    Fingerprint Dive into the research topics of 'Organic electroluminescence cells based on thin films deposited by ultraviolet laser ablation'. Together they form a unique fingerprint.

  • Cite this