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Giuseppe Cantarella - Manuscript - For Niko.pdf (1.06 MB)

Buckled Thin-Film Transistors and circuits on soft elastomers for stretchable electronics

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journal contribution
posted on 2023-06-09, 07:44 authored by Giuseppe Cantarella, Christian Vogt, Raoul Hopf, Niko Munzenrieder, Panagiotis Andrianakis, Luisa Petti, Alwin Daus, Stefan Knobelspies, Lars Büthe, Gerhard Tröster, Giovanni A Salvatore
Although recent progress in the field of flexible electronics has allowed the realization of biocompatible and conformable electronics, systematic approaches which combine high bendability (< 3 mm bending radius), high stretchability ( > 3-4 %) and low complexity in the fabrication process are still missing. Here, we show a technique to induce randomly-oriented and customized wrinkles on the surface of a biocompatible elastomeric substrate, where Thin-Film Transistors (TFTs) and circuits (inverter and logic NAND gates) based on Amorphous-IGZO are fabricated. By tuning the wavelength and the amplitude of the wrinkles, the devices are fully operational while bent to 13 µm bending radii as well as while stretched up to 5%, keeping unchanged electrical properties. Moreover, a flexible rectifier is also realized, showing no degradation in the performances while flat or wrapped on an artificial human wrist. As proof of concept, transparent TFTs are also fabricated, presenting comparable electrical performances to the non-transparent ones. The extension of the buckling approach from our TFTs to circuits demonstrates the scalability of the process, prospecting applications in wireless stretchable electronics to be worn or implanted.

History

Publication status

  • Published

File Version

  • Accepted version

Journal

ACS Applied Materials and Interfaces

ISSN

1944-8244

Publisher

American Chemical Society

Issue

34

Volume

9

Page range

28750-28757

Department affiliated with

  • Engineering and Design Publications

Research groups affiliated with

  • Sensor Technology Research Centre Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2017-08-31

First Open Access (FOA) Date

2018-08-10

First Compliant Deposit (FCD) Date

2018-01-25

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