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Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations
Simple estimations show that the thermoelectric readout in graphene radiation detectors can be extremely effective even for graphene with modest charge-carrier mobility ∼1000 cm [Formula: see text] /(Vs). The detector responsivity depends mostly on the residual charge-carrier density and split-gate...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2020
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180745/ https://www.ncbi.nlm.nih.gov/pubmed/32235646 http://dx.doi.org/10.3390/s20071930 |
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author | Yurgens, August |
author_facet | Yurgens, August |
author_sort | Yurgens, August |
collection | PubMed |
description | Simple estimations show that the thermoelectric readout in graphene radiation detectors can be extremely effective even for graphene with modest charge-carrier mobility ∼1000 cm [Formula: see text] /(Vs). The detector responsivity depends mostly on the residual charge-carrier density and split-gate spacing and can reach competitive values of ∼ [Formula: see text] – [Formula: see text] V/W at room temperature. The optimum characteristics depend on a trade-off between the responsivity and the total device resistance. Finding out the key parameters and their roles allows for simple detectors and their arrays, with high responsivity and sufficiently low resistance matching that of the radiation-receiving antenna structures. |
format | Online Article Text |
id | pubmed-7180745 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-71807452020-05-01 Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations Yurgens, August Sensors (Basel) Article Simple estimations show that the thermoelectric readout in graphene radiation detectors can be extremely effective even for graphene with modest charge-carrier mobility ∼1000 cm [Formula: see text] /(Vs). The detector responsivity depends mostly on the residual charge-carrier density and split-gate spacing and can reach competitive values of ∼ [Formula: see text] – [Formula: see text] V/W at room temperature. The optimum characteristics depend on a trade-off between the responsivity and the total device resistance. Finding out the key parameters and their roles allows for simple detectors and their arrays, with high responsivity and sufficiently low resistance matching that of the radiation-receiving antenna structures. MDPI 2020-03-30 /pmc/articles/PMC7180745/ /pubmed/32235646 http://dx.doi.org/10.3390/s20071930 Text en © 2020 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yurgens, August Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title | Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title_full | Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title_fullStr | Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title_full_unstemmed | Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title_short | Large Responsivity of Graphene Radiation Detectors with Thermoelectric Readout: Results of Simulations |
title_sort | large responsivity of graphene radiation detectors with thermoelectric readout: results of simulations |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180745/ https://www.ncbi.nlm.nih.gov/pubmed/32235646 http://dx.doi.org/10.3390/s20071930 |
work_keys_str_mv | AT yurgensaugust largeresponsivityofgrapheneradiationdetectorswiththermoelectricreadoutresultsofsimulations |