High on/off ratio carbon quantum dot–chitosan biomemristors with coplanar
nanogap electrodes
nanogap electrodes
File(s)
Published version
Author(s)
Raeis-Hosseini, Niloufar
Georgiadou, Dimitra G
Papavassiliou, Christos
Type
Journal Article
Abstract
A carbon-based natural nanocomposite material comprising carbon quantum dots (CQDs) is dispersed in a chitosan matrix. The CQD–chitosan nanocomposite serves as a solid polymer electrolyte layer of a biomemristor with a Au/CQD–chitosan/Al structure. The active layer of the CQD–chitosan nanocomposite is deposited from its solution on top of coplanar asymmetric nanogap (∼15 nm) Al–Au electrodes, patterned via adhesion lithography. The CQD–chitosan biomemristor presents a high on/off ratio (>106) and reproducible and reliable bipolar resistive switching behavior. An endurance of 160 cycles was recorded, while the high and low resistance states remained stable for more than 104 s. This study highlights the potential of both the CQD–chitosan material and nanogap electrode structures for application in nanoscale biocompatible memory devices.
Date Issued
2023-01-24
Date Acceptance
2022-12-12
Citation
ACS Applied Electronic Materials, 2023, 5 (1), pp.138-145
ISSN
2637-6113
Publisher
American Chemical Society (ACS)
Start Page
138
End Page
145
Journal / Book Title
ACS Applied Electronic Materials
Volume
5
Issue
1
Copyright Statement
© 2022 The Authors. Published by American Chemical Society. This work is published under a CC BY licence.
License URL
Identifier
https://pubs.acs.org/doi/10.1021/acsaelm.2c00979
Publication Status
Published
Date Publish Online
2022-12-21