Detektion av strålning med sensorer av grafen
Forskningsprojekt, 2020 – 2024

The main detection mechanisms of the ac-current rectification in THz graphene radiation sensors will be examined, by conducting systematic experiments on devices with different layouts and materials in combination with graphene, at frequencies from sub-THz to infrared range and wide temperature range from 4K up to room temperature. Fundamental aspects of terahertz radiation-graphene interaction and, in particular, interplay of the thermoelectric and plasmonic (Dyakonov-Shur) mechanisms of terahertz-radiation detection will be investigated, with an eye to optoelectronic applications. The layouts and materials will be tailored to favour a particular target detection mechanism using industry compatible processes. The optimal layout of the room-temperature radiation sensors will then be designed and tested, in which two- or several detection mechanisms will contribute constructively to the output signal, thereby allowing for the maximum responsivity and minimum noise.  The identification of the main detection mechanisms and development of optimized detectors will also promote new designs of other high frequency graphene devices like THz mixers and fast focal plane imaging arrays.  

Deltagare

Avgust Yurgens (kontakt)

Fysik, kemi och bioteknik samt matematik och tekniskt basår

Samarbetspartners

Universitet i Montpellier

Montpellier, France

Universitetet i Regensburg

Regensburg, Germany

Finansiering

Vetenskapsrådet (VR)

Projekt-id: 2019-00404
Finansierar Chalmers deltagande under 2020–2024

Relaterade styrkeområden och infrastruktur

Nanovetenskap och nanoteknik

Styrkeområden

Myfab (inkl. Nanotekniklaboratoriet)

Infrastruktur

Mer information

Senast uppdaterat

2025-03-31