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 ..View full abstract
Awarded by Australian Research Council
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.