Giuseppe Cantarella - Manuscript - For Niko.pdf (1.06 MB)
Buckled Thin-Film Transistors and circuits on soft elastomers for stretchable electronics
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 SalvatoreAlthough 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 InterfacesISSN
1944-8244Publisher
American Chemical SocietyExternal DOI
Issue
34Volume
9Page range
28750-28757Department 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
2017-08-31First Open Access (FOA) Date
2018-08-10First Compliant Deposit (FCD) Date
2018-01-25Usage metrics
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