Artificial Synapses Based on an Optical/Electrical Biomemristor
As artificial synapse devices, memristors have attracted widespread attention in the field of neuromorphic computing. In this paper, Al/polymethyl methacrylate (PMMA)/egg albumen (EA)–graphene quantum dots (GQDs)/PMMA/indium tin oxide (ITO) electrically/optically tunable biomemristors were fabricate...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/23/3012 |
| _version_ | 1797399810227044352 |
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| author | Lu Wang Shutao Wei Jiachu Xie Yuehang Ju Tianyu Yang Dianzhong Wen |
| author_facet | Lu Wang Shutao Wei Jiachu Xie Yuehang Ju Tianyu Yang Dianzhong Wen |
| author_sort | Lu Wang |
| collection | DOAJ |
| description | As artificial synapse devices, memristors have attracted widespread attention in the field of neuromorphic computing. In this paper, Al/polymethyl methacrylate (PMMA)/egg albumen (EA)–graphene quantum dots (GQDs)/PMMA/indium tin oxide (ITO) electrically/optically tunable biomemristors were fabricated using the egg protein as a dielectric layer. The electrons in the GQDs were injected from the quantum dots into the dielectric layer or into the adjacent quantum dots under the excitation of light, and the EA–GQDs dielectric layer formed a pathway composed of GQDs for electronic transmission. The device successfully performed nine brain synaptic functions: excitatory postsynaptic current (EPSC), paired-pulse facilitation (PPF), short-term potentiation (STP), short-term depression (STD), the transition from short-term plasticity to long-term plasticity, spike-timing-dependent plasticity (STDP), spike-rate-dependent plasticity (SRDP), the process of learning, forgetting, and relearning, and Pavlov associative memory under UV light stimulation. The successful simulation of the synaptic behavior of this device provides the possibility for biomaterials to realize neuromorphic computing. |
| first_indexed | 2024-03-09T01:46:30Z |
| format | Article |
| id | doaj.art-f372f6483ee1419982af9dba3650aea8 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T01:46:30Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-f372f6483ee1419982af9dba3650aea82023-12-08T15:22:54ZengMDPI AGNanomaterials2079-49912023-11-011323301210.3390/nano13233012Artificial Synapses Based on an Optical/Electrical BiomemristorLu Wang0Shutao Wei1Jiachu Xie2Yuehang Ju3Tianyu Yang4Dianzhong Wen5Heilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaHeilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaHeilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaHeilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaHeilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaHeilongjiang Provincial Key Laboratory of Micronano Sensitive Devices and Systems, School of Electronic Engineering, Heilongjiang University, Harbin 150080, ChinaAs artificial synapse devices, memristors have attracted widespread attention in the field of neuromorphic computing. In this paper, Al/polymethyl methacrylate (PMMA)/egg albumen (EA)–graphene quantum dots (GQDs)/PMMA/indium tin oxide (ITO) electrically/optically tunable biomemristors were fabricated using the egg protein as a dielectric layer. The electrons in the GQDs were injected from the quantum dots into the dielectric layer or into the adjacent quantum dots under the excitation of light, and the EA–GQDs dielectric layer formed a pathway composed of GQDs for electronic transmission. The device successfully performed nine brain synaptic functions: excitatory postsynaptic current (EPSC), paired-pulse facilitation (PPF), short-term potentiation (STP), short-term depression (STD), the transition from short-term plasticity to long-term plasticity, spike-timing-dependent plasticity (STDP), spike-rate-dependent plasticity (SRDP), the process of learning, forgetting, and relearning, and Pavlov associative memory under UV light stimulation. The successful simulation of the synaptic behavior of this device provides the possibility for biomaterials to realize neuromorphic computing.https://www.mdpi.com/2079-4991/13/23/3012physical transientbiological materialsgraphene quantum dotsOR gate |
| spellingShingle | Lu Wang Shutao Wei Jiachu Xie Yuehang Ju Tianyu Yang Dianzhong Wen Artificial Synapses Based on an Optical/Electrical Biomemristor Nanomaterials physical transient biological materials graphene quantum dots OR gate |
| title | Artificial Synapses Based on an Optical/Electrical Biomemristor |
| title_full | Artificial Synapses Based on an Optical/Electrical Biomemristor |
| title_fullStr | Artificial Synapses Based on an Optical/Electrical Biomemristor |
| title_full_unstemmed | Artificial Synapses Based on an Optical/Electrical Biomemristor |
| title_short | Artificial Synapses Based on an Optical/Electrical Biomemristor |
| title_sort | artificial synapses based on an optical electrical biomemristor |
| topic | physical transient biological materials graphene quantum dots OR gate |
| url | https://www.mdpi.com/2079-4991/13/23/3012 |
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