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Tunable Switching Behavior of GO-Based Memristors Using Thermal Reduction
Muayad Abujabal1, Heba Abunahla2, Baker Mohammad2
1System on Chip Lab, Department of Mechanical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates.
Nanomaterials (Basel, Switzerland)
|June 10, 2022
Summary
This study introduces a new reduced graphene oxide memristor with tunable switching behavior controlled by thermal reduction time. This method offers precise control over resistance states for advanced electronic applications.
Area of Science:
- Materials Science
- Nanotechnology
- Electronics Engineering
Background:
- Memristors are crucial for next-generation electronics, but controlling their properties remains a challenge.
- Graphene oxide (GO) offers a promising material for memristor fabrication due to its tunable electronic properties.
Purpose of the Study:
- To fabricate a novel planar reduced graphene oxide (rGO) memristor (MR) device.
- To demonstrate tunable resistive switching behavior controlled by GO reduction time.
- To explore low-temperature thermal reduction as a method for fine-tuning memristor properties.
Main Methods:
- Fabrication of planar rGO memristors using standard microfabrication on a flexible cyclic olefin copolymer (COC) substrate.
- Controlled thermal reduction of GO at 100 °C for varying durations.
- Electrical characterization, wettability tests, and X-ray diffraction (XRD) analysis.
Main Results:
- Achieved tunable resistive switching behavior in rGO memristors by adjusting GO thermal reduction time.
- Demonstrated analog switching characteristics with multiple resistance states.
- Observed a reversal in switching behavior (HRS to LRS or LRS to HRS) based on reduction time (<20h vs. >20h).
Conclusions:
- Low-temperature thermal reduction provides a controllable and non-toxic method for fabricating rGO memristors.
- Precisely tunable switching properties broaden the application scope of rGO-based memristors.
- This work presents a new pathway for developing advanced memristive devices with tailored functionalities.
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