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Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes

Recent studies reveal that carbon nanostructures show anomalous piezoelectric properties when the central symmetry of their structure is violated. Particular focus is given to carbon nanotubes (CNTs) with initial significant curvature of the graphene sheet surface, which leads to an asymmetric redis...

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Detalles Bibliográficos
Autores principales: Il’ina, Marina V., Il’in, Oleg I., Rudyk, Nikolay N., Osotova, Olga I., Fedotov, Alexander A., Ageev, Oleg A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8617926/
https://www.ncbi.nlm.nih.gov/pubmed/34835676
http://dx.doi.org/10.3390/nano11112912
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author Il’ina, Marina V.
Il’in, Oleg I.
Rudyk, Nikolay N.
Osotova, Olga I.
Fedotov, Alexander A.
Ageev, Oleg A.
author_facet Il’ina, Marina V.
Il’in, Oleg I.
Rudyk, Nikolay N.
Osotova, Olga I.
Fedotov, Alexander A.
Ageev, Oleg A.
author_sort Il’ina, Marina V.
collection PubMed
description Recent studies reveal that carbon nanostructures show anomalous piezoelectric properties when the central symmetry of their structure is violated. Particular focus is given to carbon nanotubes (CNTs) with initial significant curvature of the graphene sheet surface, which leads to an asymmetric redistribution of the electron density. This paper presents the results of studies on the piezoelectric properties of aligned multi-walled CNTs. An original technique for evaluating the effective piezoelectric coefficient of CNTs is presented. For the first time, in this study, we investigate the influence of the growth temperature and thickness of the catalytic Ni layer on the value of the piezoelectric coefficient of CNTs. We establish the relationship between the effective piezoelectric coefficient of CNTs and their defectiveness and diameter, which determines the curvature of the graphene sheet surface. The calculated values of the effective piezoelectric coefficient of CNTs are shown to be between 0.019 and 0.413 C/m(2), depending on the degree of their defectiveness and diameter.
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spelling pubmed-86179262021-11-27 Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes Il’ina, Marina V. Il’in, Oleg I. Rudyk, Nikolay N. Osotova, Olga I. Fedotov, Alexander A. Ageev, Oleg A. Nanomaterials (Basel) Article Recent studies reveal that carbon nanostructures show anomalous piezoelectric properties when the central symmetry of their structure is violated. Particular focus is given to carbon nanotubes (CNTs) with initial significant curvature of the graphene sheet surface, which leads to an asymmetric redistribution of the electron density. This paper presents the results of studies on the piezoelectric properties of aligned multi-walled CNTs. An original technique for evaluating the effective piezoelectric coefficient of CNTs is presented. For the first time, in this study, we investigate the influence of the growth temperature and thickness of the catalytic Ni layer on the value of the piezoelectric coefficient of CNTs. We establish the relationship between the effective piezoelectric coefficient of CNTs and their defectiveness and diameter, which determines the curvature of the graphene sheet surface. The calculated values of the effective piezoelectric coefficient of CNTs are shown to be between 0.019 and 0.413 C/m(2), depending on the degree of their defectiveness and diameter. MDPI 2021-10-30 /pmc/articles/PMC8617926/ /pubmed/34835676 http://dx.doi.org/10.3390/nano11112912 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Il’ina, Marina V.
Il’in, Oleg I.
Rudyk, Nikolay N.
Osotova, Olga I.
Fedotov, Alexander A.
Ageev, Oleg A.
Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title_full Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title_fullStr Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title_full_unstemmed Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title_short Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes
title_sort analysis of the piezoelectric properties of aligned multi-walled carbon nanotubes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8617926/
https://www.ncbi.nlm.nih.gov/pubmed/34835676
http://dx.doi.org/10.3390/nano11112912
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