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2 November 2016 Development of high-performing semiconducting polymers for organic electrochemical transistors (Conference Presentation)
Christian Nielsen
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Proceedings Volume 9943, Organic Field-Effect Transistors XV; 99430M (2016) https://doi.org/10.1117/12.2236368
Event: SPIE Organic Photonics + Electronics, 2016, San Diego, California, United States
Abstract
The organic electrochemical transistor (OECT), capable of amplifying small electrical signals in an aqueous environment, is an ideal device to utilize in organic bioelectronic applications involving for example neural interfacing and diagnostics. Currently, most OECTs are fabricated with commercially available conducting poly(3,4-ethylenedioxythiophene)-based suspensions such as PEDOT:PSS and are therefore operated in depletion mode giving rise to devices that are permanently on with non-optimal operational voltage. With the aim to develop and utilize efficient accumulation mode OECT devices, we discuss here our recent results regarding the design, synthesis and performance of novel intrinsic semiconducting polymers. Covering key aspects such as ion and charge transport in the bulk semiconductor and operational voltage and stability of the materials and devices, we have elucidated important structure-property relationships. We illustrate the improvements this approach has afforded in the development of high performance accumulation mode OECT materials.
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Christian Nielsen "Development of high-performing semiconducting polymers for organic electrochemical transistors (Conference Presentation)", Proc. SPIE 9943, Organic Field-Effect Transistors XV, 99430M (2 November 2016); https://doi.org/10.1117/12.2236368
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KEYWORDS
Semiconductors
Transistors
Polymers
Organic semiconductors
Diagnostics
Ions
Current controlled current source
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