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Enhanced Graphene Oxide Electrical Properties for Thin-Film Electronics Using an Active/Shrinkable Substrate.
Heba N Abunahla1, Humaira Zafar1, Dalaver H Anjum1
1System on Chip Lab, Department of Electrical Engineering and Computer Science, Department of Physics, System on Chip Lab, Department of Mechanical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.
Researchers developed novel graphene oxide (GO)-based memristor devices on shrinkable substrates. Post-fabrication shrinking enhances device performance and enables post-manufacturing scaling for flexible electronics.
Area of Science:
- Materials Science
- Nanotechnology
- Electronics Engineering
Background:
- Thin-film electronics on active substrates are crucial for flexible applications.
- Graphene oxide (GO) shows promise for electronic device fabrication.
- Scaling challenges in device manufacturing limit widespread adoption.
Purpose of the Study:
- To report a novel fabrication of graphene oxide (GO)-based memristor devices on a shrinkable substrate.
- To investigate the effect of post-fabrication shrinking on device performance and material properties.
- To explore a new method for overcoming device scaling limitations.
Main Methods:
- Fabrication of planar Au-rGO-Au memristor devices using standard lithography on a polymer substrate.
- Inducing substrate shrinkage to 50% of original size by heating to 170 °C.
- Electrical characterization and material analysis before and after shrinking.
Main Results:
- The fabricated GO-based memristor devices maintained their switching ability after shrinking.
- Shrinking led to enhanced electrical parameters, specifically improved switching voltage.
- Material characterization revealed improved GO film properties due to enhanced flake arrangement post-shrinking.
Conclusions:
- Post-fabrication shrinking is a viable method to enhance GO-based memristor performance.
- This approach offers a novel pathway for post-manufacturing device scaling and overcoming fabrication limitations.
- The developed technique paves the way for highly flexible, lightweight, and improved GO-based green electronics.
