Ionoelastomer Synapses With Configurable Synaptic Plasticity
An organic heterostructure, composed of an ionoelastomer that comprises polycationic chains and mobile anions, and a semiconducting polymer, forms a new class of artificial synapses. These ionoelastomer synapses update their synaptic weights by modifying device conductance through the spatial redistribution of anions in response to electrical stimuli. The memory effect of these synapses is highly dependent on the specific anion species present, providing a unique means to modulate synaptic plasticity simply through anion selection. The continuously programmable and nonvolatile states of the selected ionoelastomer synapse are harnessed to emulate a soft neural network and perform the handwritten digit and fashion image recognition tasks, which achieve high recognition accuracies comparable to ideal numeric model but only using 16 discrete device states.
Authors
- Xiuyang Zou (ORCID: https://orcid.org/0000-0002-1593-2092)
- Zhong‐Da Zhang
- Ya‐Nan Zhong (ORCID: https://orcid.org/0000-0003-0400-1441)
- Feng Yan (ORCID: https://orcid.org/0000-0001-9269-7025)
- Qingning Li (ORCID: https://orcid.org/0000-0002-0303-7576)
- Sui‐Dong Wang (ORCID: https://orcid.org/0000-0002-4761-4793)
- Sijie Zheng (ORCID: https://orcid.org/0000-0003-2500-4828)
- Xiaowei Wang (ORCID: https://orcid.org/0000-0002-0181-4546)
- Ziyang Liu (ORCID: https://orcid.org/0000-0003-1984-7378)
Institutions
- Macau University of Science and Technology (MO)
- Donghua University (CN)
- Soochow University (CN)
- Huaiyin Normal University (CN)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-08-21
- DOI
- https://doi.org/10.1002/adma.202505312
- Citations
- 3
- Primary Topic
- Advanced Memory and Neural Computing
- Type
- article
- Field-Weighted Citation Impact
- 2.19
Funders
- National Natural Science Foundation of China
- China Postdoctoral Science Foundation
- National Key Research and Development Program of China