Ion-modulated transistors on paper using phase-separated semiconductor/insulator blends

Fredrik Pettersson, Ronald Österbacka, Janne Koskela, Ari Kilpelä, Tommi Remonen, Yanxi Zhang, Saara Inkinen, Carl-Eric Wilen, Roger Bollström, Martti Toivakka, Anni Määttänen, Petri Ihalainen, Jouko Peltonen

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    11 Citations (Scopus)


    We have used phase-separated poly(3-hexyltiophene) (P3HT)/poly(L-lactic acid) (PLLA) blends to fabricate low-voltage ion-modulated transistors on a rough paper substrate. The semiconductor and insulator are mixed together in a solution and spin casted onto the paper substrate. Owing to their different solubilities and surface energies the P3HT and PLLA will phase separate vertically during the spinning process creating a thin layer of semiconductor on top of the insulator. This thin semiconductor layer, difficult to achieve by other means on an absorbing paper substrate, creates faster ion-modulated transistors. Using this approach we have created ring-oscillators on paper oscillating at 5 Hz.
    Original languageUndefined/Unknown
    Pages (from-to)51–55
    Number of pages5
    JournalMRS Communications
    Issue number2
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

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