CUED Publications database

Transparent, conformable, active multielectrode array using organic electrochemical transistors.

Lee, W and Kim, D and Matsuhisa, N and Nagase, M and Sekino, M and Malliaras, GG and Yokota, T and Someya, T (2017) Transparent, conformable, active multielectrode array using organic electrochemical transistors. Proc Natl Acad Sci U S A, 114. pp. 10554-10559. ISSN 0027-8424

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Abstract

Mechanically flexible active multielectrode arrays (MEA) have been developed for local signal amplification and high spatial resolution. However, their opaqueness limited optical observation and light stimulation during use. Here, we show a transparent, ultraflexible, and active MEA, which consists of transparent organic electrochemical transistors (OECTs) and transparent Au grid wirings. The transparent OECT is made of Au grid electrodes and has shown comparable performance with OECTs with nontransparent electrodes/wirings. The transparent active MEA realizes the spatial mapping of electrocorticogram electrical signals from an optogenetic rat with 1-mm spacing and shows lower light artifacts than noise level. Our active MEA would open up the possibility of precise investigation of a neural network system with direct light stimulation.

Item Type: Article
Uncontrolled Keywords: multielectrode array optogenetic organic electrochemical transistors thin films transparent electrode
Subjects: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Cron Job
Date Deposited: 22 Oct 2017 20:27
Last Modified: 08 Apr 2021 07:53
DOI: 10.1073/pnas.1703886114