Journal article

Light-gated amorphous carbon memristors with indium-free transparent electrodes

BJ Murdoch, TJ Raeber, ZC Zhao, AJ Barlow, DR McKenzie, DG McCulloch, JG Partridge

Carbon | Elsevier Ltd | Published : 2019


Amorphous carbon-based memristors with transparent conductive electrodes can be programmed both optically and electronically. We demonstrate neuromorphic logic and memory functions using light-gated amorphous carbon (a-C) memristors with indium-free transparent electrodes. The devices consist of insulating tetrahedral a-C layers with Pt top contacts supported on conductive zinc tin oxide electrodes with intentionally-oxygenated a-C interfaces. Resistive switching occurs by electron trapping/de-trapping, allowing low power, self-rectifying operation. Broadband light pulses evoke paired-pulse facilitation, emulating photonic coincidence detection. Coincidence detection was also achieved using ..

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University of Melbourne Researchers


Awarded by Australian Research Council

Funding Acknowledgements

The authors gratefully acknowledge the Australian Research Council for financial support (Discovery Project # DP170102086). The authors also acknowledge the RMIT microscopy and microanalysis facility for granting instrument access. This work was performed in part at the Australian National Fabrication Facility, a company established under the National Collaborative Research Infrastructure Strategy, through the La Trobe University Centre for Materials and Surface Science.