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Neuromorphic Computing: Ion Gated Synaptic Transistors Based on 2D van der Waals Crystals with Tunable Diffusive Dynamics (Adv. Mater. 21/2018)
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2018
Year
EngineeringSynaptic TransmissionNeurotransmissionChemistryStructural PlasticityNeurochipElectronic DevicesNeuromodulationNanoelectronicsNeuromorphic DevicesNeuromorphic EngineeringBiophysicsSurface AdsorptionPhysicsNanotechnologyObserved Varied PlasticityNeuromorphic ComputingTunable Diffusive DynamicsSynaptic PlasticityElectronic MaterialsBioelectronicsApplied PhysicsBrain-like ComputingMedicineInternal Intercalation
In article number 1800195, Yuchao Yang and co-workers demonstrate an ionic-gating-modulated synaptic transistor based on van der Waals crystals, showing bio-realistic short-term and long-term plasticity along with remarkable linearity, symmetry, and ultralow energy consumption of ≈30 fJ per spike. Their detailed investigations reveal two-stage ionic-gating effects, namely, surface adsorption and internal intercalation, causing different post-stimulation diffusive dynamics and accounting for the observed varied plasticity.