Electrical and optical characteristics of organic thin films fabricated by laser ablation

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

    Research output: Contribution to journalArticle

    14 Citations (Scopus)

    Abstract

    Non-polymer organic thin films, copper-phthalocyanine (CuPc) and 4-dialkylamino-4′-nitrostilbene (DANS), were fabricated by KrF laser ablation. Crystalline thin films with almost the same composition as the target material were deposited when reducing the laser ablation fluence close to the ablation threshold of ∼ 20 mJ/cm 2 . Higher laser fluences deplete some weakly bound atoms in the thin film, such as nitrogen in CuPc. Semiconductor characteristics of CuPc thin film were examined in a Schottky diode. DANS-doped amorphous fluoropolymer was also fabricated by combining two ablation deposition processes. A crystalline feature of DANS disappears at low DANS concentrations in a fluoropolymer matrix.

    Original languageEnglish
    Pages (from-to)625-629
    Number of pages5
    JournalApplied Surface Science
    Volume96-98
    DOIs
    Publication statusPublished - 1996 Apr

    ASJC Scopus subject areas

    • Chemistry(all)
    • Condensed Matter Physics
    • Physics and Astronomy(all)
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films

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