Issue 7, 2023

All-printed and stretchable organic electrochemical transistors using a hydrogel electrolyte

Abstract

Stretchable electronic devices are expected to play an important role in wearable electronics. Solution-processable conducting materials are desirable because of their versatile processing. Herein, we report the fabrication of fully stretchable organic electrochemical transistors (OECTs) by printing all components of the device. To achieve the stretchability of the whole body of the devices, a printed planar gate electrode and polyvinyl alcohol (PVA) hydrogel electrolyte were employed. Stretchable silver paste provided a soft feature to drain/source, gate and interconnect, without any additional strategies needed to improve the stretchability of the metallic components. The resulting OECTs showed a performance comparable to inkjet or screen-printed OECTs. The maximum transconductance and on/off ratio were 1.04 ± 0.13 mS and 830, respectively. The device was stable for 50 days and stretched up to 110% tensile strain, which makes it suitable for withstanding the mechanical deformation expected in wearable electronics. This work paves the way for all-printed and stretchable transistors in wearable bioelectronics.

Graphical abstract: All-printed and stretchable organic electrochemical transistors using a hydrogel electrolyte

Supplementary files

Article information

Article type
Paper
Submitted
01 des 2022
Accepted
16 jan 2023
First published
17 jan 2023

Nanoscale, 2023,15, 3263-3272

All-printed and stretchable organic electrochemical transistors using a hydrogel electrolyte

C. Kim, M. Azimi, J. Fan, H. Nagarajan, M. Wang and F. Cicoira, Nanoscale, 2023, 15, 3263 DOI: 10.1039/D2NR06731E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements