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Current-induced enh...
Current-induced enhancement of photo-response in graphene THz radiation detectors
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- Indykiewicz, Kornelia, 1986 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bray, C. (författare)
- Centre national de la recherche scientifique (CNRS)
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- Consejo, C. (författare)
- Centre national de la recherche scientifique (CNRS)
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- Teppe, F. (författare)
- Centre national de la recherche scientifique (CNRS)
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- Danilov, S. (författare)
- Universität Regensburg,University of Regensburg
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- Ganichev, S. D. (författare)
- Universität Regensburg,University of Regensburg,Polish Academy of Sciences
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- Yurgens, Avgust, 1959 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- AIP Publishing, 2022
- 2022
- Engelska.
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Ingår i: AIP Advances. - : AIP Publishing. - 2158-3226 .- 2158-3226. ; 12:11
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Thermoelectric readout in a graphene terahertz (THz) radiation detector requires a p-n junction across the graphene channel. Even without an intentional p-n junction, two latent junctions can exist in the vicinity of the electrodes/antennas through the proximity to the metal. In a symmetrical structure, these junctions are connected back-to-back and therefore counterbalance each other with regard to rectification of the ac signal. Because of the Peltier effect, a small dc current results in additional heating in one and cooling in another p-n junction, thereby breaking the symmetry. The p-n junctions then no longer cancel, resulting in a greatly enhanced rectified signal. This allows simplifying the design and controlling the sensitivity of THz radiation detectors.
Ämnesord
- NATURVETENSKAP -- Fysik -- Acceleratorfysik och instrumentering (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Accelerator Physics and Instrumentation (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
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- art (ämneskategori)
- ref (ämneskategori)
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