Flexible conducting polymer transistors with supercapacitor function |
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| Authors: | Zhihui Yi Luca Giacomo Bettini Gaia Tomasello Prajwal Kumar Paolo Piseri Irina Valitova Paolo Milani Francesca Soavi Fabio Cicoira |
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| Affiliation: | 1. Department of Chemical Engineering, Polytechnique Montréal, Montréal, Québec, Canada;2. CIMaINa and Department of Physics, Università degli Studi di Milano, Milano, Italy;3. Department of Chemistry “Giacomo Ciamician,”, Alma Mater Studiorum ‐ Università di Bologna, Bologna, Italy |
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| Abstract: | Planar organic electrochemical transistors (OECTs) using PEDOT:PSS as the channel material and nanostructured carbon (nsC) as the gate electrode material and poly(sodium 4‐styrenesulfonate (PSSNa) gel as the electrolyte were fabricated on flexible polyethylene terephthalate (Mylar®) substrates. The nsC was deposited at room‐temperature by supersonic cluster beam deposition (SCBD). Interestingly, the OECT acts as a hybrid supercapacitor (to give a device that we indicate as transcap). The energy storage ability of transcaps has been studied with two cell configurations: one featuring PEDOT:PSS as the positive electrode and nsC as the negative electrode and another configuration with reversed electrode polarity. Potentiostatic charge/discharge studies show that both supercapacitors show good performance in terms of voltage retention, in particular, when PEDOT:PSS is used as the positive electrode. Galvanostatic charge–discharge characteristics show typical symmetric triangular shape, indicating a nearly ideal capacitive behavior with a high columbic efficiency (close to 100%). © 2016 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2017 , 55, 96–103 |
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| Keywords: | conducting polymers device fabrication organic electrochemical transistors PEDOT:PSS supercapacitors |
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