Distinction of the thermoelectric effect in graphene FET THz detectors
- Generalov, Andrey
- Ludwig, F.
- Ahmadi, Mohsen
- Bonmann, Marlene
- Vorobiev, Andrei
- Soikkeli, Miika
- Arpiainen, Sanna
- Prunnila, Mika
- Stake, Jan
- Roskos, H. G.
- Sun, Zhipei
Publication date
January 2020
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
This work presents an approach to distinguish the thermoelectric detection mechanism from the resistive mixing or plasma wave rectification in graphene FET THz detectors. Numerical full-wave simulations validate the asymmetric feeding of the existing antenna design and allow for comparison with a reference design of thermoelectric detectors. The experimental results verify quantitively the thermoelectric contribution to the overall rectification, which allows for more accurate modelling of the GFET THz detectors
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