Zitieren Sie bitte immer diesen URN: urn:nbn:de:kobv:b43-457884
Suppression of the quantum-confined Stark effect in polar nitride heterostructures
- Recently, we suggested an unconventional approach (the so-called Internal-Field-Guarded-Active-Region Design “IFGARD”) for the elimination of the quantum-confined Stark effect in polar semiconductor heterostructures. The IFGARD-based suppression of the Stark redshift on the order of electronvolt and spatial charge carrier separation is independent of the specific polar semiconductor material or the related growth procedures. In this work, we demonstrate by means of micro-photoluminescence techniques the successful tuning as well as the elimination of the quantum-confined Stark effect in strongly polar [000-1] wurtzite GaN/AlN nanodiscs as evidenced by a reduction of the exciton lifetimes by up to four orders of magnitude. Furthermore, the tapered geometry of the utilized nanowires (which embed the investigated IFGARD nanodiscs) facilitates the experimental differentiation between quantum confinement and Stark emission energy shifts. Due to the IFGARD, both effects become independentlyRecently, we suggested an unconventional approach (the so-called Internal-Field-Guarded-Active-Region Design “IFGARD”) for the elimination of the quantum-confined Stark effect in polar semiconductor heterostructures. The IFGARD-based suppression of the Stark redshift on the order of electronvolt and spatial charge carrier separation is independent of the specific polar semiconductor material or the related growth procedures. In this work, we demonstrate by means of micro-photoluminescence techniques the successful tuning as well as the elimination of the quantum-confined Stark effect in strongly polar [000-1] wurtzite GaN/AlN nanodiscs as evidenced by a reduction of the exciton lifetimes by up to four orders of magnitude. Furthermore, the tapered geometry of the utilized nanowires (which embed the investigated IFGARD nanodiscs) facilitates the experimental differentiation between quantum confinement and Stark emission energy shifts. Due to the IFGARD, both effects become independently adaptable.…
Autor*innen: | S. Schlichting, Gerald HönigORCiD, J. Müßener, P. Hille, T. Grieb, S. Westerkamp, J. Teubert, J. Schörmann, M.R. Wagner, A. Rosenauer, M. Eickhoff, A. Hoffmann, G. Callsen |
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Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Communications physics |
Jahr der Erstveröffentlichung: | 2018 |
Organisationseinheit der BAM: | 8 Zerstörungsfreie Prüfung |
8 Zerstörungsfreie Prüfung / 8.4 Akustische und elektromagnetische Verfahren | |
Veröffentlichende Institution: | Bundesanstalt für Materialforschung und -prüfung (BAM) |
Verlag: | Springer Nature |
Verlagsort: | London |
Jahrgang/Band: | 1 |
Aufsatznummer: | 48 |
Erste Seite: | 1 |
Letzte Seite: | 8 |
DDC-Klassifikation: | Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten |
Freie Schlagwörter: | Nanophotonics; Photonic devices; Single photon and quantum effects |
Themenfelder/Aktivitätsfelder der BAM: | Material |
DOI: | 10.1038/s42005-018-0044-1 |
URN: | urn:nbn:de:kobv:b43-457884 |
ISSN: | 2399-3650 |
Zugehöriger Identifikator: | https://nbn-resolving.org/urn:nbn:de:kobv:b43-411013 |
Verfügbarkeit des Dokuments: | Datei für die Öffentlichkeit verfügbar ("Open Access") |
Lizenz (Deutsch): | Creative Commons - CC BY - Namensnennung 4.0 International |
Datum der Freischaltung: | 28.08.2018 |
Referierte Publikation: | Ja |
Datum der Eintragung als referierte Publikation: | 27.07.2020 |
Schriftenreihen ohne Nummerierung: | Wissenschaftliche Artikel der BAM |