Charge mediated Copper Iodide based artificial synaptic device with ultrahigh neuromorphic efficacy

Assi, D. S., Huang, H., Kandira, K. U., Alsulaiman, N. S., Theja, V. C. S., Abbas, H. , Karthikeyan, V. and Roy, V. A. L. (2023) Charge mediated Copper Iodide based artificial synaptic device with ultrahigh neuromorphic efficacy. Physica Status Solidi - Rapid Research Letters, 17(10), 2300191. (doi: 10.1002/pssr.202300191)

Abstract

In the realm of artificial intelligence, ultrahigh-performance neuromorphic computing plays a significant role in executing multiple complex operations in parallel while adhering to a more biologically plausible model. Despite their importance, developing an artificial synaptic device to match the human brain's efficiency is an extremely complex task involving high energy consumption and poor parallel processing latency. Herein, a simple molecule, copper-iodide-based artificial synaptic device demonstrating core synaptic functions of human neural networks is introduced. Exceptionally high carrier mobility and dielectric constant in the developed device lead to superior efficacies in neuromorphic characteristics with ultrahigh paired-pusle facilitation index (>195). The results demonstrate biomimetic capabilities that exert a direct influence on neural networks across multiple timescales, ranging from short- to long-term memory. This flexible reconfiguration of neural excitability provided by the copper-iodide-based synaptic device positions it as a promising candidate for creating advanced artificial intelligence systems.

• Item Type: Articles
• Additional Information: The authors acknowledge grants from the Research Grants Council of Hong Kong Special Administrative Region project no.: T42-717/20. The authors gratefully acknowledge support from the EPSRC under the “New Horizons” call grant no.: EP/X016846/1.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Kandira, Kadir Ufuk and Assi, Dani and Vellaisamy, Professor Roy and Alsulaiman, Mr Nasser and Karthikeyan, Dr Vaithinathan and Abbas, Dr Hasan and Huang, Hongli

Creator Roles

Assi, D.: Conceptualization, Methodology, Visualization, Formal analysis, Writing – original draft
Huang, H.: Software, Resources, Data curation
Kandira, K. U.: Conceptualization, Methodology, Visualization, Formal analysis, Writing – original draft
Alsulaiman, N.: Software, Resources, Data curation
Abbas, H.: Conceptualization, Supervision, Funding acquisition, Project administration, Writing – review and editing
Karthikeyan, V.: Conceptualization, Methodology, Visualization, Formal analysis, Writing – original draft
Vellaisamy, R.: Conceptualization, Supervision, Funding acquisition, Project administration, Writing – review and editing

• Authors: Assi, D. S., Huang, H., Kandira, K. U., Alsulaiman, N. S., Theja, V. C. S., Abbas, H., Karthikeyan, V., and Roy, V. A. L.
• College/School: College of Science and Engineering > School of Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Physica Status Solidi - Rapid Research Letters
• Publisher: Wiley
• ISSN: 1862-6254
• ISSN (Online): 1862-6270
• Published Online: 01 August 2023
• Copyright Holders: Copyright © 2023 The Authors
• First Published: First published in Physica Status Solidi - Rapid Research Letters 17(10):2300191
• Publisher Policy: Reproduced under a Creative Commons license