Environmental graphene conductivity sensing using terahertz time-domain reflection spectroscopy

We demonstrate how reflection terahertz time-domain spectroscopy (THz-TDS) can be used to measure conductivity of large area graphene films through silicon substrate. This through-substrate approach in turn allows an unhindered access to the graphene top surface and thus, opens up pathways to perfor...

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Bibliographic Details
Main Authors: Lin, Hungyen, Burton, Oliver J., Engelbrecht, Sebastian, Tybussek, Kai-Henning, Fischer, Bernd M., Hofmann, Stephan
Format: Conference Proceeding
Language:English
Subjects:
Conductivity
Graphene
Reflection
Spectroscopy
Substrates
Surface waves
Time-domain analysis
Online Access:Request full text
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Summary:We demonstrate how reflection terahertz time-domain spectroscopy (THz-TDS) can be used to measure conductivity of large area graphene films through silicon substrate. This through-substrate approach in turn allows an unhindered access to the graphene top surface and thus, opens up pathways to perform in situ and in-operando THz-TDS using environmental cells.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz46771.2020.9370983