Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing
Electrolyte‐gated organic synaptic transistors (EGOSTs) have shed light on their potential in bioelectronics and neuromorphic computing. Numerous research have been studied to modulate their electrochemical doping performance and formulate a simple approach to control iontronics through the side‐cha...
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| Format: | Article |
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Wiley-VCH
2025-01-01
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| Series: | Small Structures |
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| Online Access: | https://doi.org/10.1002/sstr.202400319 |
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| author | Junho Sung Minji Kim Sein Chung Yongchan Jang Soyoung Kim Min‐Seok Kang Hee‐Young Lee Joonhee Kang Donghwa Lee Wonho Lee Eunho Lee |
| author_facet | Junho Sung Minji Kim Sein Chung Yongchan Jang Soyoung Kim Min‐Seok Kang Hee‐Young Lee Joonhee Kang Donghwa Lee Wonho Lee Eunho Lee |
| author_sort | Junho Sung |
| collection | DOAJ |
| description | Electrolyte‐gated organic synaptic transistors (EGOSTs) have shed light on their potential in bioelectronics and neuromorphic computing. Numerous research have been studied to modulate their electrochemical doping performance and formulate a simple approach to control iontronics through the side‐chain modulations; however, the effects of alkyl groups as side moieties have not been studied in detail on EGOSTs. Herein, the structural and electrical properties of conjugated polymers are systematically controlled through copolymerization with two different‐alkyl group‐derived monomers for enhancing the nonvolatile characteristics of EGOSTs. The relationships between crystal orientation and electrochemical doping states of conjugated copolymers, which varied with the different copolymerization ratios, are revealed. Also, the behavior of biological synapses, including paired‐pulse facilitation, spike timing‐dependent plasticity, and long‐term potentiation/depression, are successfully simulated. In this study, new avenues are opened for the implementation of neuromorphic devices through side‐chain engineering by showing that the alkyl chain modulates the doping performance. |
| format | Article |
| id | doaj-art-f1d8fe1020e44f40a7d0f7eed29f9205 |
| institution | Kabale University |
| issn | 2688-4062 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Small Structures |
| spelling | doaj-art-f1d8fe1020e44f40a7d0f7eed29f92052025-01-10T17:54:14ZengWiley-VCHSmall Structures2688-40622025-01-0161n/an/a10.1002/sstr.202400319Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic ComputingJunho Sung0Minji Kim1Sein Chung2Yongchan Jang3Soyoung Kim4Min‐Seok Kang5Hee‐Young Lee6Joonhee Kang7Donghwa Lee8Wonho Lee9Eunho Lee10Department of Chemical and Biomolecular Engineering Seoul National University of Science and Technology Seoul 01811 Republic of KoreaDepartment of Chemical Engineering Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Chemical Engineering Pohang University of Science and Technology Pohang 37673 Republic of KoreaDepartment of Polymer Science and Engineering Department of Energy Engineering Convergence Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Polymer Science and Engineering Department of Energy Engineering Convergence Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Chemical Engineering Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Chemical Engineering Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Nanoenergy Engineering Pusan National University Busan 46241 Republic of KoreaDepartment of Chemical and Biomolecular Engineering Seoul National University of Science and Technology Seoul 01811 Republic of KoreaDepartment of Polymer Science and Engineering Department of Energy Engineering Convergence Kumoh National Institute of Technology Gumi 39177 Republic of KoreaDepartment of Chemical and Biomolecular Engineering Seoul National University of Science and Technology Seoul 01811 Republic of KoreaElectrolyte‐gated organic synaptic transistors (EGOSTs) have shed light on their potential in bioelectronics and neuromorphic computing. Numerous research have been studied to modulate their electrochemical doping performance and formulate a simple approach to control iontronics through the side‐chain modulations; however, the effects of alkyl groups as side moieties have not been studied in detail on EGOSTs. Herein, the structural and electrical properties of conjugated polymers are systematically controlled through copolymerization with two different‐alkyl group‐derived monomers for enhancing the nonvolatile characteristics of EGOSTs. The relationships between crystal orientation and electrochemical doping states of conjugated copolymers, which varied with the different copolymerization ratios, are revealed. Also, the behavior of biological synapses, including paired‐pulse facilitation, spike timing‐dependent plasticity, and long‐term potentiation/depression, are successfully simulated. In this study, new avenues are opened for the implementation of neuromorphic devices through side‐chain engineering by showing that the alkyl chain modulates the doping performance.https://doi.org/10.1002/sstr.202400319copolymerselectrochemical dopingsneuromorphic computingsorganic materialsside‐chain engineerings |
| spellingShingle | Junho Sung Minji Kim Sein Chung Yongchan Jang Soyoung Kim Min‐Seok Kang Hee‐Young Lee Joonhee Kang Donghwa Lee Wonho Lee Eunho Lee Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing Small Structures copolymers electrochemical dopings neuromorphic computings organic materials side‐chain engineerings |
| title | Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing |
| title_full | Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing |
| title_fullStr | Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing |
| title_full_unstemmed | Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing |
| title_short | Modulating Alkyl Groups in Copolymer to Control Ion Transport in Electrolyte‐Gated Organic Transistors for Neuromorphic Computing |
| title_sort | modulating alkyl groups in copolymer to control ion transport in electrolyte gated organic transistors for neuromorphic computing |
| topic | copolymers electrochemical dopings neuromorphic computings organic materials side‐chain engineerings |
| url | https://doi.org/10.1002/sstr.202400319 |
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