Journal
ORGANIC ELECTRONICS
Volume 45, Issue -, Pages 215-221Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.orgel.2017.03.021
Keywords
Organic bioelectronics; Organic electrochemical transistors; Neuron recording
Funding
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2013/21034-0]
- Brazilian National Council (CNPq/Science without Borders) [201753/2014-6]
- National Science Foundation (DMR) [1507826]
- INCT/INEO
- NeuroFab project at Stanford University
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1507826] Funding Source: National Science Foundation
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We present a universal model for the transient drain current response in organic electrochemical transistors (OECTs). Using equivalent circuits and charge injection physics, we are able to predict the drain current in OECT devices upon application of a gate voltage input. The model is applicable to both plain and membrane-functionalized devices, and allows us to extract useful physical quantities such as resistances and capacitances, which are related to functional properties of the system. We are also able to use the model to reconstruct the magnitude and shape in time of an applied voltage source based on the observed drain current response. This was experimentally demonstrated for drain current measurements under an applied action potential. (C) 2017 Elsevier B.V. All rights reserved.
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