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On-demand coupling of electrically generated excitons with surface plasmons via voltage-controlled emission zone position

The ability to confine and manipulate light below the diffraction limit is a major goal of future multifunctional optoelectronic/plasmonic systems. Here, we demonstrate the design and realization of a tunable and localized electrical source of excitons coupled to surface plasmons based on a polymer...

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Bibliographische Detailangaben
Hauptverfasser: Zakharko, Yuriy (VerfasserIn) , Held, Martin (VerfasserIn) , Sadafi, Fabrizio-Zagros (VerfasserIn) , Gannott, Florentina (VerfasserIn) , Mahdavi, Ali (VerfasserIn) , Peschel, Ulf (VerfasserIn) , Taylor, Robin N. Klupp (VerfasserIn) , Zaumseil, Jana (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 8 January 2016
In: ACS photonics
Year: 2016, Jahrgang: 3, Heft: 1, Pages: 1-7
ISSN:2330-4022
DOI:10.1021/acsphotonics.5b00413
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1021/acsphotonics.5b00413
Volltext
Verfasserangaben:Yuriy Zakharko, Martin Held, Fabrizio-Zagros Sadafi, Florentina Gannott, Ali Mahdavi, Ulf Peschel, Robin N. Klupp Taylor, and Jana Zaumseil
Beschreibung
Zusammenfassung:The ability to confine and manipulate light below the diffraction limit is a major goal of future multifunctional optoelectronic/plasmonic systems. Here, we demonstrate the design and realization of a tunable and localized electrical source of excitons coupled to surface plasmons based on a polymer light-emitting field-effect transistor (LEFET). Gold nanorods that are integrated into the channel support localized surface plasmons and serve as nanoantennas for enhanced electroluminescence. By precise spatial control of the near-infrared emission zone in the LEFET via the applied voltages the near-field coupling between electrically generated excitons and the nanorods can be turned on or off as visualized by a change of electroluminescence intensity. Numerical calculations and spectroscopic measurements corroborate significant local electroluminescence enhancement due to the high local density of photonic states in the vicinity of the gold nanorods. Importantly, the integration of plasmonic nanostructures hardly influences the electrical performance of the LEFETs, thus, highlighting their mutual compatibility in novel active plasmonic devices.
Beschreibung:Gesehen am 01.10.2021
Beschreibung:Online Resource
ISSN:2330-4022
DOI:10.1021/acsphotonics.5b00413

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