Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS

We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measurements is discussed, and our implementation is valida...

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Detalles Bibliográficos
Autores principales: Zhou, Binbin, Rasmussen, Mattias, Whelan, Patrick Rebsdorf, Ji, Jie, Shivayogimath, Abhay, Bøggild, Peter, Jepsen, Peter Uhd
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10099266/
https://www.ncbi.nlm.nih.gov/pubmed/37050729
http://dx.doi.org/10.3390/s23073669
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author Zhou, Binbin
Rasmussen, Mattias
Whelan, Patrick Rebsdorf
Ji, Jie
Shivayogimath, Abhay
Bøggild, Peter
Jepsen, Peter Uhd
author_facet Zhou, Binbin
Rasmussen, Mattias
Whelan, Patrick Rebsdorf
Ji, Jie
Shivayogimath, Abhay
Bøggild, Peter
Jepsen, Peter Uhd
author_sort Zhou, Binbin
collection PubMed
description We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measurements is discussed, and our implementation is validated by convincing agreement with graphene electrical properties extracted from more conventional transmission-mode measurements. Both the reflection and transmission THz-TDS measurements reveal strong non-linear and instantaneous conductivity depletion across an ultra-broad bandwidth (1–9 THz) under relatively high incident THz electrical field strengths (up to 1050 kV/cm).
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spelling pubmed-100992662023-04-14 Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS Zhou, Binbin Rasmussen, Mattias Whelan, Patrick Rebsdorf Ji, Jie Shivayogimath, Abhay Bøggild, Peter Jepsen, Peter Uhd Sensors (Basel) Article We demonstrate that the conductivity of graphene on thin-film polymer substrates can be accurately determined by reflection-mode air-plasma-based THz time-domain spectroscopy (THz-TDS). The phase uncertainty issue associated with reflection measurements is discussed, and our implementation is validated by convincing agreement with graphene electrical properties extracted from more conventional transmission-mode measurements. Both the reflection and transmission THz-TDS measurements reveal strong non-linear and instantaneous conductivity depletion across an ultra-broad bandwidth (1–9 THz) under relatively high incident THz electrical field strengths (up to 1050 kV/cm). MDPI 2023-03-31 /pmc/articles/PMC10099266/ /pubmed/37050729 http://dx.doi.org/10.3390/s23073669 Text en © 2023 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
Zhou, Binbin
Rasmussen, Mattias
Whelan, Patrick Rebsdorf
Ji, Jie
Shivayogimath, Abhay
Bøggild, Peter
Jepsen, Peter Uhd
Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title_full Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title_fullStr Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title_full_unstemmed Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title_short Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS
title_sort non-linear conductivity response of graphene on thin-film pet characterized by transmission and reflection air-plasma thz-tds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10099266/
https://www.ncbi.nlm.nih.gov/pubmed/37050729
http://dx.doi.org/10.3390/s23073669
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