Journal
IEEE ELECTRON DEVICE LETTERS
Volume 41, Issue 9, Pages 1440-1443Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LED.2020.3012831
Keywords
Two dimensional displays; Biology; Humanoid robots; Molybdenum; Sulfur; Threshold voltage; Robot sensing systems; 2D material; humanoid robot; MoS2; nociceptor
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Funding
- NSF CAREER Award [NSF-ECCS-1845331]
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An artificial nociceptor realized with a single 2D MoS2-based memristor device is demonstrated in this work. The threshold switching memristor (TSM) device exhibits volatile resistance switching characteristics with low threshold voltage and a high ON-OFF ratio of 10(6). The Au/MoS2/Ag TSM device imitates a nociceptor, a special receptor of a sensory neuron that can detect noxious stimulus and transfer the signal to the central nervous system for preventive actions. The single device exhibits all key features of nociceptors including threshold, relaxation, no adaptation and sensitization phenomena of allodynia and hyperalgesia depending on the strength, duration, and repetition of the external stimuli. This work indicates applicability of this device in artificial sensory alarm systems for humanoid robots.
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