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Polyfluorene Conjugated Polyelectrolytes-Covalently Modified Black Phosphorus Nanosheets for Bioinspired Electronics
Qiang Che1, Jiaxuan Liu1, Qian Chen1,2
1Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
This study introduces a novel polymer memristor using black phosphorus (BP) and a conjugated polyelectrolyte. The device demonstrates stable, analog-type switching for neuromorphic computing, mimicking biological synaptic functions.
Area of Science:
- Materials Science
- Electronics
- Neuroscience
Background:
- Polymer memristors are promising for bioinspired electronics and neuromorphic computing.
- Analog-type switching behavior is crucial for synaptic mimicking.
Purpose of the Study:
- To develop a stable polymer memristor with analog-type switching behavior.
- To emulate synaptic functions for neuromorphic applications.
Main Methods:
- Fabrication of an electronic device using a poly[9,9-bis(6-(3-methyl-1-imidazolium-yl)hexyl)fluorene]-covalently modified black phosphorus (BP-PF-NMI+Br-) active layer.
- Characterization of the device's memristive performance under varying electrical stimuli.
- Evaluation of synaptic functions emulation.
Main Results:
- The BP-PF-NMI+Br- device exhibited excellent electricity-dependent memristive performance with a linear resistance decrease.
- Stable analog-type switching was observed within a ±1 V sweep range.
- The device successfully emulated synaptic potentiation/depression and learning/memorizing/forgetting functions.
Conclusions:
- The developed BP-PF-NMI+Br- polymer memristor shows significant potential for synaptic mimicking and neuromorphic computing.
- The integration of black phosphorus with conjugated polyelectrolytes enhances memristive stability and functionality.
- This work paves the way for advanced bioinspired electronic systems.
