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Roll-to-roll processable OTFT-based amplifier and application for pH sensing

Abstract:
The prospect of roll-to-roll (R2R) processable Organic Thin Film Transistors (OTFTs) and circuits has attracted attention due to their mechanical flexibility and low cost of manufacture. This work will present a flexible electronics application for pH sensing with flexible and wearable signal processing circuits. A transimpedance amplifier was designed and fabricated on a polyethylene naphthalate (PEN) substrate prototype sheet that consists of 54 transistors. Different types and current ratios of current mirrors were initially created and then a suitable simple 1:3 current mirror (200nA) was selected to present the best performance of the proposed OTFT based transimpedance amplifier (TIA). Finally, this transimpedance amplifier was connected to a customized needle-based pH sensor that was induced as microfluidic collector for potential disease diagnosis and healthcare monitoring.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1109/bsn.2019.8771092

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Materials
Role:
Author


Publisher:
Institute of Electrical and Electronics Engineers
Host title:
2019 IEEE 16th International Conference on Wearable and Implantable Body Sensor Networks (BSN)
Journal:
2019 IEEE 16th International Conference on Wearable and Implantable Body Sensor Networks (BSN= More from this journal
Publication date:
2019-07-25
Acceptance date:
2019-07-25
DOI:
ISBN:
9781538674772


Keywords:
Pubs id:
pubs:1038780
UUID:
uuid:ceaa6c17-c332-414c-98d2-ef961c75b175
Local pid:
pubs:1038780
Source identifiers:
1038780
Deposit date:
2019-08-06
ARK identifier:

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