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Fully inkjet-printed flexible organic voltage inverters as a basic component in digital NOT gates
Adam Luczak1, Kalyan Y Mitra2,3, Reinhard R Baumann2,3
1Department of Molecular Physics, Faculty of Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924, Lodz, Poland. adam.luczak@p.lodz.pl.
Scientific Reports
|June 28, 2022
Summary
Inkjet printing allows scalable fabrication of flexible electronic circuits, including organic voltage inverters functioning as NOT logic gates. These printed circuits demonstrate remarkable stability, maintaining electrical performance after three years under ambient conditions.
Area of Science:
- Materials Science
- Organic Electronics
- Nanotechnology
Background:
- Conventional vacuum-based techniques limit large-scale fabrication of electronic elements.
- Inkjet printing offers a promising alternative for scalable and cost-effective manufacturing.
Purpose of the Study:
- To demonstrate fully inkjet-printed flexible electronic circuits, specifically organic voltage inverters acting as NOT logic gates.
- To develop specialized ink formulations for key circuit components.
Main Methods:
- Formulation of specialized inks for gate dielectric (poly(4-vinylphenol)) and semiconductor layers.
- Utilizing printed, photoxidized poly(3-hexylthiophene) for resistor active layers.
- Characterization of device operation via DC current-voltage measurements.
Main Results:
- Successfully fabricated functional organic voltage inverters and NOT logic gates using inkjet printing.
- Demonstrated the stability of unencapsulated printed circuits, with unchanged electrical parameters after three years of ambient storage followed by annealing.
- Analyzed device performance based on DC characteristics.
Conclusions:
- Inkjet printing is a viable method for fabricating stable, large-scale flexible electronic circuits.
- The developed organic electronic components exhibit excellent long-term environmental resistance.
- Printed organic electronics offer a promising pathway for future electronic applications.
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