Fiber-Shaped Cu-Ion Diffusive Memristor for Neuromorphic Computing

Multifunctional Multigate One-Transistor with Thin Advanced Materials, Logic-in-Memory, and Artificial Synaptic Behaviors

“…This shows that both control gates, that is, the channel electrodes, can be used to adjust the artificial synaptic behavior; this is more powerful than the existing commonly investigated two-terminal and three-terminal artificial synaptic devices and simpler than the multi-terminal aritificial synaptic transistors published by others . The typical excitatory postsynaptic current shown in Figure e illustrates an exponential behavior with time, as demonstrated by the fitting curve in red . Another memory effect is also exhibited by the curve; that is, the base current in average increases after the bottom-gate pulse is triggered, as illustrated in Figure f.…”

“…18 The typical excitatory postsynaptic current shown in Figure 5e illustrates an exponential behavior with time, as demonstrated by the fitting curve in red. 34 Another memory effect is also exhibited by the curve; that is, the base current in average increases after the bottom-gate pulse is triggered, as illustrated in Figure 5f.…”

“…Plasticity is one of the most important characteristics of synapses, which includes the paired-pulse facilitation (PPF) and paired-pulse depression (PPD). , Both are observed in MGT designs with MoS 2 and multiple control gates in the channel. In Figure b, PPF is depicted with the pulse amplitude on the bottom-gate V GS as 3 V. Owing to the high conductivity of the layered MoS 2 , the charge release is excessively fast so that, after a pulse of V GS , the transmission behavior is not observed; this can be realized by adding ionic liquids or by using other methods, such as doping. , When three pulses are sequentially applied to the terminal, the stimulated I DS has a higher peak value corresponding to the latter pulse than that to the first pulse.…”