Jumaah, Alaa Jabbar ; Al-Daffaie, Shihab ; Yilmazoglu, Oktay ; Kusserow, Thomas (2022)
Continuous-wave terahertz emitter with hybrid nanoelectrodes based on graphene and nanowire.
In: OSA Continuum, 2022, 3 (7)
doi: 10.26083/tuprints-00022083
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Continuous-wave terahertz emitters based on photomixers with hybrid nanoelectrodes are investigated. The nanoelectrodes consist of a nitrogen-doped single layer of graphene and silver nanowires, placed on low-temperature-grown (LTG) GaAs as photoconductive material. Due to the high transparency of graphene and the low fill factor of nanowire nanoelectrodes, high photocurrents in the range from 260 μA to 1.8 mA can be reached. Despite their very small size nanoelectrodes provide the capability of handling rather high currents, leading to THz output signals reasonably three times higher than for conventional interdigitated finger electrodes for the whole measurement range. Measurement results of generated photocurrents and THz output signals are presented, showing the increased performance of our approach while maintaining highly reliable operation of the devices.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Jumaah, Alaa Jabbar ; Al-Daffaie, Shihab ; Yilmazoglu, Oktay ; Kusserow, Thomas |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Continuous-wave terahertz emitter with hybrid nanoelectrodes based on graphene and nanowire |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | OSA |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | OSA Continuum |
| Jahrgang/Volume einer Zeitschrift: | 3 |
| (Heft-)Nummer: | 7 |
| Kollation: | 8 Seiten |
| DOI: | 10.26083/tuprints-00022083 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22083 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung aus gefördertem Golden Open Access |
| Kurzbeschreibung (Abstract): | Continuous-wave terahertz emitters based on photomixers with hybrid nanoelectrodes are investigated. The nanoelectrodes consist of a nitrogen-doped single layer of graphene and silver nanowires, placed on low-temperature-grown (LTG) GaAs as photoconductive material. Due to the high transparency of graphene and the low fill factor of nanowire nanoelectrodes, high photocurrents in the range from 260 μA to 1.8 mA can be reached. Despite their very small size nanoelectrodes provide the capability of handling rather high currents, leading to THz output signals reasonably three times higher than for conventional interdigitated finger electrodes for the whole measurement range. Measurement results of generated photocurrents and THz output signals are presented, showing the increased performance of our approach while maintaining highly reliable operation of the devices. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-220834 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Mikrowellentechnik und Photonik (IMP) |
| Hinterlegungsdatum: | 25 Aug 2022 12:05 |
| Letzte Änderung: | 29 Aug 2022 08:22 |
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| Zugehörige Links: | |
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