Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/95758
Title: | Multifunctional optoelectronic synapse based on ferroelectric van der Waals heterostructure for emulating the entire human visual system | Authors: | Guo, F Song, M Wong, MC Ding, R Io, WF Pang, SY Jie, W Hao, J |
Issue Date: | 2-Feb-2022 | Source: | Advanced functional materials, 2 Feb. 2022, v. 32, no. 6, 2108014 | Abstract: | The development of optoelectronic synapses can provide an important breakthrough toward creating a sophisticated and adaptable artificial visual system analogous to that of humans. However, it remains a great challenge to implement the various functions of the biological visual neuromorphic system at the single device level. Intriguingly, 2D van der Waals (vdW) heterostructure may offer a platform to address the issue. Here, a novel multifunctional synaptic device based on ferroelectric α-In2Se3/GaSe vdW heterojunction is proposed to emulate the entire biological visual system. Essential synaptic behaviors are observed in response to light and electrical stimuli; additionally, the retina-like selectivity for light wavelengths and the achievement of Pavlov's dog experiment demonstrate the device's capacity for processing complex electrical and optical inputs. Beyond the optoelectronic synaptic behaviors, the device incorporates memory and logic functions analogous to those in the brain's visual cortex. The results of artificial neural network simulations show that the vdW heterojunction-based device is completely capable of performing logic operations and recognizing images with a high degree of accuracy. The study indicates that versatile devices with a rationally designed construction have great potential for efficiently processing complex visual information and may simplify the design of artificial visual systems. | Keywords: | Artificial visual systems Ferroelectric 2D materials Logic functions Memory Optoelectronic synapses Van der Waals heterostructures |
Publisher: | Wiley-VCH | Journal: | Advanced functional materials | ISSN: | 1616-301X | EISSN: | 1616-3028 | DOI: | 10.1002/adfm.202108014 | Rights: | © 2021 Wiley-VCH GmbH This is the peer reviewed version of the following article: Guo, F., Song, M., Wong, M.-C., Ding, R., Io, W. F., Pang, S.-Y., Jie, W., Hao, J., Multifunctional Optoelectronic Synapse Based on Ferroelectric Van der Waals Heterostructure for Emulating the Entire Human Visual System. Adv. Funct. Mater. 2022, 32, 2108014, which has been published in final form at https://doi.org/10.1002/adfm.202108014. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Guo_Multifunctional_Optoelectronic_Synapse.pdf | Pre-Published version | 1.43 MB | Adobe PDF | View/Open |
Page views
63
Last Week
0
0
Last month
Citations as of May 19, 2024
Downloads
157
Citations as of May 19, 2024
SCOPUSTM
Citations
69
Citations as of May 16, 2024
WEB OF SCIENCETM
Citations
73
Citations as of May 16, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.