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

Binbin Zhou; Mattias Rasmussen; Patrick Rebsdorf Whelan; Jie Ji; Abhay Shivayogimath; Peter Bøggild; Peter Uhd Jepsen

doi:10.3390/s23073669

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

Binbin Zhou^*, Mattias Rasmussen, Patrick Rebsdorf Whelan, Jie Ji, Abhay Shivayogimath, Peter Bøggild, Peter Uhd Jepsen

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

57 Downloads (Pure)

Abstract

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 (THzTDS). 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).

Original language	English
Article number	3669
Journal	Sensors
Volume	23
Number of pages	11
ISSN	1424-3210
DOIs	https://doi.org/10.3390/s23073669
Publication status	Published - 2023

Keywords

Graphene
AC conductivity
THz time-domain spectroscopy
Reflection spectroscopy

Access to Document

10.3390/s23073669

FulltextFinal published version, 860 KB

OpenUrl availability

Full text

Cite this

@article{ac64d497b18f4815880e743465c6dc75,

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

abstract = "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 (THzTDS). 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).",

keywords = "Graphene, AC conductivity, THz time-domain spectroscopy, Reflection spectroscopy",

author = "Binbin Zhou and Mattias Rasmussen and Whelan, {Patrick Rebsdorf} and Jie Ji and Abhay Shivayogimath and Peter B{\o}ggild and Jepsen, {Peter Uhd}",

year = "2023",

doi = "10.3390/s23073669",

language = "English",

volume = "23",

journal = "Sensors",

issn = "1424-3210",

publisher = "M D P I AG",

}

TY - JOUR

T1 - Non-Linear Conductivity Response of Graphene on Thin-Film PET Characterized by Transmission and Reflection Air-Plasma THz-TDS

AU - Zhou, Binbin

AU - Rasmussen, Mattias

AU - Whelan, Patrick Rebsdorf

AU - Ji, Jie

AU - Shivayogimath, Abhay

AU - Bøggild, Peter

AU - Jepsen, Peter Uhd

PY - 2023

Y1 - 2023

N2 - 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 (THzTDS). 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).

AB - 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 (THzTDS). 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).

KW - Graphene

KW - AC conductivity

KW - THz time-domain spectroscopy

KW - Reflection spectroscopy

U2 - 10.3390/s23073669

DO - 10.3390/s23073669

M3 - Journal article

C2 - 37050729

SN - 1424-3210

VL - 23

JO - Sensors

JF - Sensors

M1 - 3669

ER -

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

Abstract

Keywords

Access to Document

OpenUrl availability

Fingerprint

Cite this