Synaptic transistors, which emulate the behavior of biological synapses, play a vital role in information processing and storage in neuromorphic systems. However, the occurrence of excessive current spikes during the updating of synaptic weight poses challenges to the stability, accuracy, and power consumption of synaptic transistors. In this work, we experimentally investigate the main factors for the generation of current spikes in the three-terminal synaptic transistors that use LiCoO2 (LCO), a mixed ionic-electronic conductor, as the channel layer. Kelvin probe force microscopy and impedance testing results reveal that ion migration and adsorption at the drain–source-channel interface cause the current spikes that compromise the device's performance. By controlling the crystal orientation of the LCO channel layer to impede the in-plane migration of lithium ions, we show that the LCO channel layer with the (104) preferred orientation can effectively suppress both the peak current and power consumption in the synaptic transistors. Our study provides a unique insight into controlling the crystallographic orientation for the design of high-speed, high-robustness, and low-power consumption nano-memristor devices.
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Inhibiting the current spikes within the channel layer of LiCoO2-based three-terminal synaptic transistors
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December 2024
Research Article|
October 09 2024
Inhibiting the current spikes within the channel layer of LiCoO2-based three-terminal synaptic transistors
Yue Chen
;
Yue Chen
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
2
Physics Department, Lancaster University
, Lancaster LA1 4YB, United Kingdom
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Weijian Zhang
;
Weijian Zhang
a)
(Data curation, Formal analysis, Investigation, Methodology, Project administration, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
4
Fujian Provincial Collaborative Innovation Centre for Advanced High-Field Superconducting Materials and Engineering
, Fuzhou 350117, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Yuezhen Lu
;
Yuezhen Lu
(Formal analysis, Investigation, Validation)
5
Department of Electronic and Electrical Engineering, University College London
, 903 Torrington Place, London WC1E 7JE, United Kingdom
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Minzhen Chen
;
Minzhen Chen
(Data curation, Investigation, Validation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Jing Chen;
Jing Chen
(Data curation, Investigation, Validation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Hongyi Lu;
Hongyi Lu
(Data curation, Investigation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Yubiao Niu;
Yubiao Niu
(Conceptualization, Data curation)
6
We Are Nium Ltd. Research Complex at Harwell (RCaH), Rutherford Appleton Laboratory
, Harwell, Didcot OX11 0FA, United Kingdom
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Guiying Zhao;
Guiying Zhao
(Data curation, Investigation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Jianming Tao
;
Jianming Tao
(Conceptualization, Data curation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Jiaxin Li;
Jiaxin Li
(Conceptualization, Data curation, Validation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Yingbin Lin;
Yingbin Lin
(Conceptualization, Data curation, Validation)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
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Oleg Kolosov
;
Oleg Kolosov
a)
(Data curation, Funding acquisition, Investigation, Methodology, Validation, Writing – original draft, Writing – review & editing)
2
Physics Department, Lancaster University
, Lancaster LA1 4YB, United Kingdom
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
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Zhigao Huang
Zhigao Huang
a)
(Conceptualization, Data curation, Funding acquisition, Validation, Writing – original draft, Writing – review & editing)
1
College of Physics and Energy, Fujian Normal University, Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials
, Fuzhou 350117, China
3
Fujian Provincial Engineering Technical Research Centre of Solar-Energy Conversion and Stored Energy
, Fuzhou 350117, China
4
Fujian Provincial Collaborative Innovation Centre for Advanced High-Field Superconducting Materials and Engineering
, Fuzhou 350117, China
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Search for other works by this author on:
a)Authors to whom correspondence should be addressed: [email protected]; [email protected]; and [email protected]
Appl. Phys. Rev. 11, 041407 (2024)
Article history
Received:
January 29 2024
Accepted:
September 18 2024
Citation
Yue Chen, Weijian Zhang, Yuezhen Lu, Minzhen Chen, Jing Chen, Hongyi Lu, Yubiao Niu, Guiying Zhao, Jianming Tao, Jiaxin Li, Yingbin Lin, Oleg Kolosov, Zhigao Huang; Inhibiting the current spikes within the channel layer of LiCoO2-based three-terminal synaptic transistors. Appl. Phys. Rev. 1 December 2024; 11 (4): 041407. https://doi.org/10.1063/5.0200811
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