Journal
NANO ENERGY
Volume 87, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106190
Keywords
Piezo-electronics; Nanowires; Memristors; Tactile Sensor; In-chip computing
Categories
Funding
- National Natural Science Foundation of China (NSFC) [51975101, 61804105]
- National Key Research and Development Program of China [2018YFA0703200]
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The HPPMS is a high-resolution pressure piezo-memory system with a 60 nm pixel size, featuring non-volatile force resistive conversion and force-tunable synaptic functions. It enables nanoscale force image sensing and memory actions, along with enhanced processing efficiencies and recognition rates for neuromorphic tactile preprocessing.
Neuromorphic tactile sensors provide considerable feasibility to simulate essential capabilities of the human tactile system even beyond the bio-perceptible range. Nevertheless, the complicated circuitry of artificial tactile sensors based on electrical-skin, memory, and processing components show serial barriers in terms of system resolution, integration, and power consumption. Here, a high-resolution pressure piezo-memory system (HPPMS) is reported with 60 nm pixel-size as a competent neuromorphic tactile sensor, that presents non-volatile force resistive conversion and force-tunable synaptic functions. The piezo-memory pixel arrays realize nanoscale forceimage sensing and memory actions as same as neuromorphic tactile preprocessing by enhanced processing efficiencies and recognition rates. The proof-of-concept system affords the possibility to achieve ultra-small force distributions, simplify tactile sensor circuits, and develop advanced applications in in-sensor computing and artificial intelligence.
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