High-Performance Vertical Organic Electrochemical Transistors.
Authors
Williamson, Adam
Strakosas, Xenofon
Friedlein, Jacob T
McLeod, Robert R
Gleskova, Helena
Publication Date
2018-02Journal Title
Adv Mater
ISSN
0935-9648
Publisher
Wiley
Volume
30
Issue
5
Language
eng
Type
Article
This Version
AM
Previous Version(s)
Physical Medium
Print-Electronic
Metadata
Show full item recordCitation
Donahue, M. J., Williamson, A., Strakosas, X., Friedlein, J. T., McLeod, R. R., Gleskova, H., & Malliaras, G. G. (2018). High-Performance Vertical Organic Electrochemical Transistors.. Adv Mater, 30 (5) https://doi.org/10.1002/adma.201705031
Abstract
Organic electrochemical transistors (OECTs) are promising transducers for biointerfacing due to their high transconductance, biocompatibility, and availability in a variety of form factors. Most OECTs reported to date, however, utilize rather large channels, limiting the transistor performance and resulting in a low transistor density. This is typically a consequence of limitations associated with traditional fabrication methods and with 2D substrates. Here, the fabrication and characterization of OECTs with vertically stacked contacts, which overcome these limitations, is reported. The resulting vertical transistors exhibit a reduced footprint, increased intrinsic transconductance of up to 57 mS, and a geometry-normalized transconductance of 814 S m-1 . The fabrication process is straightforward and compatible with sensitive organic materials, and allows exceptional control over the transistor channel length. This novel 3D fabrication method is particularly suited for applications where high density is needed, such as in implantable devices.
Keywords
device density, electrochemical transistors, organic bioelectronics, transconductance, vertical
Identifiers
External DOI: https://doi.org/10.1002/adma.201705031
This record's URL: https://www.repository.cam.ac.uk/handle/1810/285992
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http://www.rioxx.net/licenses/all-rights-reserved
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