Distinction Of The Thermoelectric Effect In Graphene Fet Thz Detectors

Andrey A. Generalov,Florian Ludwig,Mohsen Ahmadi,Marlene Bonmann,Andrei Vorobiev,Miika Soikkeli,Sanna Arpiainen,Mika Prunnila,Jan Stake,Hartmut G. Roskos,Zhipei Sun

2020 45TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)（2020）

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摘要

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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关键词

thermoelectric effect,GFET THz detectors,thermoelectric contribution,thermoelectric detectors,antenna design,numerical full-wave simulations,resistive mixing,thermoelectric detection mechanism,graphene FET THz detectors

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