Through-substrate terahertz time-domain reflection spectroscopy for environmental graphene conductivity mapping | Zendy

Hungyen Lin | Zendy; Oliver J. Burton | Zendy; Sebastian Engelbrecht | Zendy; Kai-Henning Tybussek | Zendy; Bernd Fischer | Zendy; Stephan Hofmann | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Through-substrate terahertz time-domain reflection spectroscopy for environmental graphene conductivity mapping

Author(s) -

Hungyen Lin,

Oliver J. Burton,

Sebastian Engelbrecht,

Kai-Henning Tybussek,

Bernd Fischer,

Stephan Hofmann

Publication year - 2020

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.5135644

Subject(s) - graphene , terahertz radiation , substrate (aquarium) , materials science , reflection (computer programming) , conductivity , optoelectronics , spectroscopy , surface conductivity , silicon , attenuated total reflection , chemical vapor deposition , terahertz time domain spectroscopy , terahertz spectroscopy and technology , total internal reflection , optics , nanotechnology , chemistry , physics , computer science , oceanography , quantum mechanics , programming language , geology

We demonstrate how terahertz time-domain spectroscopy (THz-TDS) operating in reflection geometry can be used for quantitative conductivity mapping of large area chemical vapor deposited graphene films through silicon support. We validate the technique against measurements performed using the established transmission based THz-TDS. Our through-substrate approach allows unhindered access to the graphene top surface and thus, as we discuss, opens up pathways to perform in situ and in-operando THz-TDS using environmental cells.We demonstrate how terahertz time-domain spectroscopy (THz-TDS) operating in reflection geometry can be used for quantitative conductivity mapping of large area chemical vapor deposited graphene films through silicon support. We validate the technique against measurements performed using the established transmission based THz-TDS. Our through-substrate approach allows unhindered access to the graphene top surface and thus, as we discuss, opens up pathways to perform in situ and in-operando THz-TDS using environmental cells.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research