Modulation of polyaniline memristive device switching voltage by nucleotide-free analogue of vitamin B 12 .

Autor: Prudnikov NV; National Research Centre 'Kurchatov Institute', 123182 Moscow, Russia., Emelyanov AV; National Research Centre 'Kurchatov Institute', 123182 Moscow, Russia.; Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia., Serenko MV; National Research Centre 'Kurchatov Institute', 123182 Moscow, Russia.; Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia., Dereven'kov IA; Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia., Maiorova LA; Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology, 153000 Ivanovo, Russia.; Federal Research Center Computer Science and Control of Russian Academy of Sciences, 119333 Moscow, Russia., Erokhin VV; Consiglio Nazionale delle Ricerche, Institute of Materials for Electronics and Magnetism (CNR-IMEM), 43124 Parma, Italy.
Jazyk: angličtina
Zdroj: Nanotechnology [Nanotechnology] 2024 May 30; Vol. 35 (33). Date of Electronic Publication: 2024 May 30.
DOI: 10.1088/1361-6528/ad4cf5
Abstrakt: Memristive devices offer essential properties to become a part of the next-generation computing systems based on neuromorphic principles. Organic memristive devices exhibit a unique set of properties which makes them an indispensable choice for specific applications, such as interfacing with biological systems. While the switching rate of organic devices can be easily adjusted over a wide range through various methods, controlling the switching potential is often more challenging, as this parameter is intricately tied to the materials used. Given the limited options in the selection conductive polymers and the complexity of polymer chemical engineering, the most straightforward and accessible approach to modulate switching potentials is by introducing specific molecules into the electrolyte solution. In our study, we show polyaniline (PANI)-based device switching potential control by adding nucleotide-free analogue of vitamin B 12 , aquacyanocobinamide, to the electrolyte solution. The employed concentrations of this molecule, ranging from 0.2 to 2 mM, enabled organic memristive devices to achieve switching potential decrease for up to 100 mV, thus providing a way to control device properties. This effect is attributed to strong aromatic interactions between PANI phenyl groups and corrin macrocycle of the aquacyanocobinamide molecule, which was supported by ultraviolet-visible spectra analysis.
(© 2024 IOP Publishing Ltd.)
Databáze: MEDLINE
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