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Vertically Integrated Monolithic Neuromorphic Nanowire Device for Physiological Information Processing
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DOI：10.1021/acs.nanolett.3c04391.png)
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This study demonstrates the conceptual design and fabrication of a vertically integrated monolithic (VIM) neuromorphic device. The device comprises an n-type SnO2 nanowire bottom channel connected by a shared gate to a p-type P3HT nanowire top channel. This architecture establishes two distinct neural pathways with different response behaviors. The device generates excitatory and inhibitory postsynaptic currents, mimicking the corelease mechanism of bilingual synapses. To enhance the signal processing efficiency, we employed a bipolar spike encoding strategy to convert fluctuating sensory signals to spike trains containing positive and negative pulses. Utilizing the neuromorphic platform for synaptic processing, physiological signals featuring bidirectional fluctuations, including electrocardiogram and breathing signals, can be classified with an accuracy of over 90%. The VIM device holds considerable promise as a solution for developing highly integrated neuromorphic hardware for healthcare and edge intelligence applications.
Keyword:
SnO2-P3HT nanowire channels
verticallyintegrated synaptic transistors
neuromorphic hardware
healthcare applications
期刊
IF:
9.1
论文数:
2.7W
被引数:
16.5W
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