1. The Electrochemical Transistor: a device based on the Electrochemical control of a polymer Polaronic state. The PCPDT-BT as a case study
- Author
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Stefani, Andrea, Giacomino, Agnese, Morandi, Sara, Marchetti, Andrea, and Fontanesi, Claudio
- Subjects
Physics - Applied Physics ,Condensed Matter - Soft Condensed Matter - Abstract
This work presents an original concept directed to implement an unconventional methodology where a device is produced by integrating a solid-state circuitry concept and an electrochemistry cell. In our experimental system an organic semiconductor, (PCPDT-BT), serves both as the gate and working electrode. Gating is obtained via electrochemical polarization exploiting a conventional three electrodes electrochemical cell placed on top of a traditional source/drain/gate solid-state device configuration. Source/drain conduction is probed via impedance measurement (electrochemical impedance spectroscopy, EIS) performed as a function of time at constant frequency, under constant potential control. The conductivity of the PCPDT-BT is due to the polaronic state induced via application of a suitable electrochemical potential (in the oxidation regime), as it is proved by infrared (IR) spectra recorded in-situ/in-operando (in attenuated under total reflection, ATR, mode) upon both electrochemical and chemical ionization/doping of the PCPDT-BT., Comment: Main ms., 15 pages, 4 figures Supp Info, 9 pages, 10 figures, 3 equations
- Published
- 2024