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

Published online by Cambridge University Press:  07 April 2014

Fredrik Pettersson ,
Ronald Österbacka ,
Janne Koskela ,
Ari Kilpelä ,
Tommi Remonen ,
Yanxi Zhang ,
Saara Inkinen ,
Carl-Eric Wilén ,
Roger Bollström  and
Martti Toivakka
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Fredrik Pettersson*
Affiliation:
Department of Natural Sciences/Physics, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Ronald Österbacka
Affiliation:
Department of Natural Sciences/Physics, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Janne Koskela
Affiliation:
Electronics Laboratory, University of Oulu, PL 4500, FI-90014 Oulu, Finland
Ari Kilpelä
Affiliation:
Electronics Laboratory, University of Oulu, PL 4500, FI-90014 Oulu, Finland
Tommi Remonen
Affiliation:
Department of Natural Sciences/Physics, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland; Department of Chemical Engineering/Polymer Technology, Åbo Akademi University, Piispankatu 8, 20500 Turku, Finland
Yanxi Zhang
Affiliation:
Department of Chemical Engineering/Polymer Technology, Åbo Akademi University, Piispankatu 8, 20500 Turku, Finland
Saara Inkinen
Affiliation:
Department of Chemical Engineering/Polymer Technology, Åbo Akademi University, Piispankatu 8, 20500 Turku, Finland
Carl-Eric Wilén
Affiliation:
Department of Chemical Engineering/Polymer Technology, Åbo Akademi University, Piispankatu 8, 20500 Turku, Finland
Roger Bollström
Affiliation:
Department of Chemical Engineering/Paper Coating and Converting, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Martti Toivakka
Affiliation:
Department of Chemical Engineering/Paper Coating and Converting, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Anni Määttänen
Affiliation:
Department of Natural Sciences/Physical Chemistry, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Petri Ihalainen
Affiliation:
Department of Natural Sciences/Physical Chemistry, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
Jouko Peltonen
Affiliation:
Department of Natural Sciences/Physical Chemistry, Åbo Akademi University, Porthaninkatu 3, 20500 Turku, Finland
*
Address all correspondence to Fredrik Pettersson at[email protected]
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Abstract

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.

Type
Research Letters
Information
MRS Communications , Volume 4 , Issue 2 , June 2014 , pp. 51 - 55
Copyright
Copyright © Materials Research Society 2014 

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