Printed transistors for ocean sensing

Shuoen Wu; Bogyeom Seo; Jason D. Azoulay; Tse Nga Ng

doi:10.1117/12.2567182

20 August 2020 Printed transistors for ocean sensing

Shuoen Wu, Bogyeom Seo, Jason D. Azoulay, Tse Nga Ng

Proceedings Volume 11476, Organic and Hybrid Field-Effect Transistors XIX; 114760H (2020) https://doi.org/10.1117/12.2567182
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

Low-cost, compact sensor systems for in-situ monitoring of marine conditions will provide critical information to understand how pollution 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. This presentation will discuss the development of dissolved oxygen (DO) sensors, which has a detection limit to 3 ppm as required in marine studies. The challenges in balancing the oxygen reduction reaction with the doping/dedeoping process in OECTs will be shown and mitigated by using multiple voltage rails. The DO sensor will be used in conjunction with pH ion-selective transistors, to provide multi-modal measurements that assess how these parameters correlate to water quality. We will show the device sensitivity and stability under simulated marine environment.

Conference Presentation

Citation Download Citation

Shuoen Wu, Bogyeom Seo, Jason D. Azoulay, and Tse Nga Ng "Printed transistors for ocean sensing", Proc. SPIE 11476, Organic and Hybrid Field-Effect Transistors XIX, 114760H (20 August 2020); https://doi.org/10.1117/12.2567182

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