Vertically Integrated Monolithic Neuromorphic Nanowire Device for Physiological Information Processing

• DOI: 10.1021/acs.nanolett.3c04391
• Publication Date: 2024-04-03T12:44:08Z
• Authors: Junchi Liu; Chengpeng Jiang; Huanhuan Wei; Zixian Wang; Lin Sun; Song Zhang; Yao Ni; Shangda Qu; Lu Yang; Wentao Xu
• Keywords: Neuromorphic engineering; Postsynaptic Current

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 shared gate to p-type P3HT top channel. architecture establishes two distinct neural pathways with different response behaviors. generates excitatory inhibitory postsynaptic currents, mimicking corelease mechanism bilingual synapses. To enhance signal processing efficiency, we employed bipolar spike encoding strategy convert fluctuating sensory signals trains containing positive negative pulses. Utilizing platform for synaptic processing, physiological featuring bidirectional fluctuations, including electrocardiogram breathing signals, can be classified accuracy over 90%. VIM holds considerable promise as solution developing highly hardware healthcare edge intelligence applications.