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The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites

An experimental method exploiting the capacitive response of most materials is here revised. The procedure called the “Voltage Ramp Method” (VRM) is based on applying proper voltage ramp cycles over time and measuring electrical current intensity flowing through the material sample. In the case of a...

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Autores principales: Vitulo, Paolo, Zanoletti, Michele, Morina, Riccardo, Callegari, Daniele, Quartarone, Eliana, Viola, Riccardo, Comoretto, Davide, Dulio, Sergio, Mustarelli, Piercarlo, Patrini, Maddalena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9181138/
https://www.ncbi.nlm.nih.gov/pubmed/35683125
http://dx.doi.org/10.3390/ma15113829
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author Vitulo, Paolo
Zanoletti, Michele
Morina, Riccardo
Callegari, Daniele
Quartarone, Eliana
Viola, Riccardo
Comoretto, Davide
Dulio, Sergio
Mustarelli, Piercarlo
Patrini, Maddalena
author_facet Vitulo, Paolo
Zanoletti, Michele
Morina, Riccardo
Callegari, Daniele
Quartarone, Eliana
Viola, Riccardo
Comoretto, Davide
Dulio, Sergio
Mustarelli, Piercarlo
Patrini, Maddalena
author_sort Vitulo, Paolo
collection PubMed
description An experimental method exploiting the capacitive response of most materials is here revised. The procedure called the “Voltage Ramp Method” (VRM) is based on applying proper voltage ramp cycles over time and measuring electrical current intensity flowing through the material sample. In the case of an ideal capacitor, a current plateau should be easily measured, and the capacitance value precisely determined. However, most media, e.g., semiconductors and insulating polymers, show dielectric absorption and hence electric leakage effects. Therefore, the VRM method allows simultaneous determination of their equivalent capacitance and resistance. Some case studies are discussed as concerning the application of VRM to both standard and actual media. A figure of merit of the method is the percentage difference between 2.5% and 1.5% with respect to the nominal values of a commercial capacitor and resistor, respectively. The simulation modeling of the material electrical response is compared to the experimental data also on polymer nanocomposites suitable for energy harvesting.
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spelling pubmed-91811382022-06-10 The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites Vitulo, Paolo Zanoletti, Michele Morina, Riccardo Callegari, Daniele Quartarone, Eliana Viola, Riccardo Comoretto, Davide Dulio, Sergio Mustarelli, Piercarlo Patrini, Maddalena Materials (Basel) Article An experimental method exploiting the capacitive response of most materials is here revised. The procedure called the “Voltage Ramp Method” (VRM) is based on applying proper voltage ramp cycles over time and measuring electrical current intensity flowing through the material sample. In the case of an ideal capacitor, a current plateau should be easily measured, and the capacitance value precisely determined. However, most media, e.g., semiconductors and insulating polymers, show dielectric absorption and hence electric leakage effects. Therefore, the VRM method allows simultaneous determination of their equivalent capacitance and resistance. Some case studies are discussed as concerning the application of VRM to both standard and actual media. A figure of merit of the method is the percentage difference between 2.5% and 1.5% with respect to the nominal values of a commercial capacitor and resistor, respectively. The simulation modeling of the material electrical response is compared to the experimental data also on polymer nanocomposites suitable for energy harvesting. MDPI 2022-05-27 /pmc/articles/PMC9181138/ /pubmed/35683125 http://dx.doi.org/10.3390/ma15113829 Text en © 2022 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
Vitulo, Paolo
Zanoletti, Michele
Morina, Riccardo
Callegari, Daniele
Quartarone, Eliana
Viola, Riccardo
Comoretto, Davide
Dulio, Sergio
Mustarelli, Piercarlo
Patrini, Maddalena
The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title_full The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title_fullStr The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title_full_unstemmed The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title_short The Electrical Response of Real Dielectrics: Using the Voltage Ramp Method as a Straightforward Diagnostic Tool for Polymeric Composites
title_sort electrical response of real dielectrics: using the voltage ramp method as a straightforward diagnostic tool for polymeric composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9181138/
https://www.ncbi.nlm.nih.gov/pubmed/35683125
http://dx.doi.org/10.3390/ma15113829
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