Scaling Organic Electrochemical Transistors Down to Nanosized Channels
| العنوان: | Scaling Organic Electrochemical Transistors Down to Nanosized Channels |
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| المؤلفون: | Alberto Ballesio, Alessandro Sanginario, Alessio Verna, Salvatore Iannotta, Matteo Parmeggiani, Danilo Demarchi, Pasquale D'Angelo, Matteo Cocuzza, Giuseppe Tarabella, Candido Pirri, Simone Luigi Marasso |
| المصدر: | Small (Weinh., Print) 15 (2019): 1902332-1–1902332-13. doi:10.1002/smll.201902332 info:cnr-pdr/source/autori:D'Angelo P.; Marasso S.L.; Verna A.; Ballesio A.; Parmeggiani M.; Sanginario A.; Tarabella G.; Demarchi D.; Pirri C.F.; Cocuzza M.; Iannotta S./titolo:Scaling Organic Electrochemical Transistors Down to Nanosized Channels/doi:10.1002%2Fsmll.201902332/rivista:Small (Weinh., Print)/anno:2019/pagina_da:1902332-1/pagina_a:1902332-13/intervallo_pagine:1902332-1–1902332-13/volume:15 |
| بيانات النشر: | Wiley-VCH-Verl., Weinheim , Germania, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | intercalation pseudocapacitance, Materials science, Transconductance, 02 engineering and technology, electrochemical impedance spectroscopy, electromigration induced break junction, nanogap-OECTs, organic bioelectronics, 010402 general chemistry, 01 natural sciences, Pseudocapacitance, law.invention, Biomaterials, PEDOT:PSS, law, General Materials Science, electrochemical impedence spectroscopy, business.industry, Transistor, electrochemical impedence spectroscopy, electromigration induced break junction, intercalation pseudocapacitance, nanogap-OECTs, organic bioelectronics, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Dielectric spectroscopy, Electrode, Optoelectronics, Equivalent circuit, 0210 nano-technology, business, Break junction, Biotechnology |
| الوصف: | The perspective of downscaling organic electrochemical transistors (OECTs) in the nanorange is approached by depositing poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) on electrodes with a nanogap designed and fabricated by electromigration induced break junction (EIBJ) technique. The electrical response of the fabricated devices is obtained by acquiring transfer characteristics in order to clarify the specific main characteristics of OECTs with sub-micrometer-sized active channels (nanogap-OECTs). On the basis of their electrical response to different scan times, the nanogap-OECT shows a maximum transconductance unaffected upon changing scan times in the time window from 1 s to 100 µs, meaning that fast varying signals can be easily acquired with unchanged amplifying performance. Hence, the scaling down of the channel size to the nanometer scale leads to a geometrical paradigm that minimizes effects on device response due to the cationic diffusion into the polymeric channel. A comprehensive study of these features is carried out by an electrochemical impedance spectroscopy (EIS) study, complemented by a quantitative analysis made by equivalent circuits. The propagation of a redox front into the polymer bulk due to ionic diffusion also known as the "intercalation pseudocapacitance" is identified as a limiting factor for the transduction dynamics. |
| اللغة: | English |
| DOI: | 10.1002/smll.201902332 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be0e93e29209e89dc49241a86c2cdfa3 https://publications.cnr.it/doc/415187 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....be0e93e29209e89dc49241a86c2cdfa3 |
| قاعدة البيانات: | OpenAIRE |
| DOI: | 10.1002/smll.201902332 |
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