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Wednesday, May 6, 2026

Revealing the potential of 2D WS2 memristors as a synthetic synapse with resilient gradual conduct at excessive temperatures for neuromorphic functions


The growing demand for future digital applied sciences and high-temperature neuromorphic {hardware} will depend on non-volatile conduct and energy effectivity. Excessive-temperature gadgets are essential for house exploration and performance in extreme environments, similar to industrial models. Two-dimensional transition steel dichalcogenides (TMDs) are identified for his or her sturdy mechanical properties, which make them frontrunners for next-generation machine fabrication. This paper presents an Ag/WS2/W memristive machine deposited onto a silicon substrate using a direct present (DC) magnetron sputtering method that may function at excessive temperatures. The machine shows regular and dependable gradual resistive switching traits with low set/reset switching voltages (+0.65 V/−0.55 V). Gadget additionally reveals a superb electrical endurance (>2500 cycles), retention time (>104 s), and good cycle-to-cycle variability with low variation coefficient, confirming its consistency and robustness. Temperature-dependent present–voltage measurements had been utilized to research the conduction conduct of the developed memristive machine. The measured electrical traits highlighted a thermally assisted conduction course of, thereby justifying the proposed switching mannequin. Moreover, the memristor machine emulated elementary synaptic plasticity functionalities, together with long-term potentiation (LTP), long-term despair (LTD), paired-pulse facilitation (PPF), and paired-pulse despair (PPD). This examine highlights 2D WS2 as an rising materials that may serve successfully as a synthetic synapse and likewise maintains regular operation at elevated temperatures. These findings pave the best way for the conclusion of state-of-the-art neuromorphic computing platforms.

Graphical abstract: Revealing the potential of 2D WS2 memristors as an artificial synapse with resilient gradual behavior at high temperatures for neuromorphic applications

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