Roll-to-roll compatible organic thin film transistor manufacturing technique by printing, lamination, and laser ablation

Tomi Hassinen, Teemu Ruotsalainen, Petri Laakso, Raimo Penttilä, Henrik GO Sandberg

    Research output: Contribution to journalArticleScientificpeer-review

    15 Citations (Scopus)

    Abstract

    We present roll-to-roll printing compatible techniques for manufacturing organic thin film transistors using two separately processed foils that are laminated together. The introduction of heat-assisted lamination opens up possibilities for material and processing combinations. The lamination of two separately processed substrates together will allow usage of pre-patterned electrodes on both substrates and materials with non-compatible solvents. Also, the surface microstructure is formed differently when laminating dry films together compared to film formation from liquid phase. Demonstrator transistors, inverters and ring oscillators were produced using lamination techniques. Finally, a roll-to-roll compatible lamination concept is proposed where also the source and drain electrodes are patterned by laser ablation. The demonstrator transistors have shown very good lifetime in air, which is contributed partly to the good material combination and partly to the enhanced interface formation in heat-assisted lamination process.
    Original languageEnglish
    Pages (from-to)212-217
    Number of pages6
    JournalThin Solid Films
    Volume571
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Keywords

    • printed electronics
    • lamination
    • organic transistor
    • roll-to-roll

    Fingerprint Dive into the research topics of 'Roll-to-roll compatible organic thin film transistor manufacturing technique by printing, lamination, and laser ablation'. Together they form a unique fingerprint.

    Cite this