Van der Waals heterostructure-based flexible two-terminal ferroelectric field-effect transistors for in-sensor optoelectronic computing
Source abstract
Abstract
Abstract The rapid development of artificial intelligence has resulted in the exploitation of bio-inspired visual systems for in-sensor optoelectronic computing. To achieve this, we propose a bioinspired flexible two-terminal optoelectronic synapse enabled by a van der Waals (vdW) ferroelectric field-effect transistor (FeFET) with the metal-ferroelectric-metal-insulator-semiconductor architecture. The MoS 2 /h-BN/graphene/CuInP 2 S 6 (CIPS) vdW FeFET exhibits drain voltage ( V ds )/light pulses-modulated ferroelectric polarization state and synaptic plasticity. Consequently, the device has the capacity to emulate a range of neural synaptic functions. Based on the flexible two-terminal optoelectronic synapse, we further simulate an optoelectronic neural network based on the two-terminal vdW FeFET synapses array with an image recognition accuracy of >90%. Thus, the demonstrated device characteristics hold the potential for the development of future flexible in-sensor optoelectronic computing applications.
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Research context
OpenAlex topics: Ferroelectric and Negative Capacitance Devices · 2D Materials and Applications · Advanced Sensor and Energy Harvesting Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Xi’an University of Technology
Funding
the State Key Laboratory of Electrical Insulation and Power Equipment · Young Talent Fund of Association for Science and Technology in Shaanxi, China · Shaanxi Provincial Education Department · National Natural Science Foundational of China
References (54)
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