Sensing dissolved oxygen through organic electrochemical transistors

Shuoen Wu; Bogyeom Seo; Tse Nga Ng

doi:10.1117/12.2567181

20 August 2020 Sensing dissolved oxygen through organic electrochemical transistors

Shuoen Wu, Bogyeom Seo, Tse Nga Ng

Proceedings Volume 11476, Organic and Hybrid Field-Effect Transistors XIX; 1147611 (2020) https://doi.org/10.1117/12.2567181
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Conference Poster

Abstract

Low-cost sensors for in situ monitoring of ocean conditions will provide critical information to understand how nutrients and oxygen levels correlate to fish kills and aquaculture issues. The compatibility of organic electrochemical transistors (OECTs) with aqueous environments makes them promising sensor components in an ocean sensing platform. Our OECTs is based on PEDOT as channel and carbon as electrodes. Here we design the sensor for detecting dissolved oxygen (DO) and explain the challenges in balancing the oxygen reduction reaction with the doping/dedeoping process in OECTs. We will show the device sensitivity and stability with respect to DO concentration under simulated marine environment.

Citation Download Citation

Shuoen Wu, Bogyeom Seo, and Tse Nga Ng "Sensing dissolved oxygen through organic electrochemical transistors", Proc. SPIE 11476, Organic and Hybrid Field-Effect Transistors XIX, 1147611 (20 August 2020); https://doi.org/10.1117/12.2567181

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