Numerical Modeling of an Organic Electrochemical Transistor
| العنوان: | Numerical Modeling of an Organic Electrochemical Transistor |
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| المؤلفون: | Anna Shirinskaya, Gilles Horowitz, Jonathan Rivnay, George Malliaras, Yvan Bonnassieux |
| المصدر: | Biosensors Biosensors, Vol 8, Iss 4, p 103 (2018) Volume 8 Issue 4 |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | model, Polymers, lcsh:Biotechnology, Biosensing Techniques, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, biosensor, Article, organic electrochemical transistor, de-doping, lcsh:TP248.13-248.65, Electrochemistry, Physics::Chemical Physics, moving front, Electrodes |
| الوصف: | We develop a numerical model for the current-voltage characteristics of organic electrochemical transistors (OECTs) based on steady-state Poisson&rsquo s, Nernst&rsquo s and Nernst&ndash Planck&rsquo s equations. The model starts with the doping&ndash dedoping process depicted as a moving front, when the process at the electrolyte&ndash polymer interface and gradually moves across the film. When the polymer reaches its final state, the electrical potential and charge density profiles largely depend on the way the cations behave during the process. One case is when cations are trapped at the polymer site where dedoping occurs. In this case, the moving front stops at a point that depends on the applied voltage the higher the voltage, the closer the stopping point to the source electrode. Alternatively, when the cations are assumed to move freely in the polymer, the moving front eventually reaches the source electrode in all cases. In this second case, cations tend to accumulate near the source electrode, and most of the polymer is uniformly doped. The variation of the conductivity of the polymer film is then calculated by integrating the density of holes all over the film. Output and transfer curves of the OECT are obtained by integrating the gate voltage-dependent conductivity from source to drain. |
| وصف الملف: | application/pdf |
| تدمد: | 2079-6374 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::764b061ba8f55617c69c94beec2274d7 https://pubmed.ncbi.nlm.nih.gov/30384434 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.pmid.dedup....764b061ba8f55617c69c94beec2274d7 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20796374 |
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