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Triple cation mixed-halide perovskites for tunable lasers

Brenner, Philipp 1; Glöckler, Tim 1; Rueda-Delgado, Diana 1; Abzieher, Tobias 1; Jakoby, Marius 2; Richards, Bryce S. ORCID iD icon 1,2; Paetzold, Ulrich W. ORCID iD icon 1,2; Howard, Ian A. 1,2; Lemmer, Uli 1,2
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Mikrostrukturtechnik (IMT), Karlsruher Institut für Technologie (KIT)

Abstract (englisch):

Metal halide perovskites are recently a ttracting strong attention due to their potential in solar cells, LEDs, and lasers. Here, we demonstrate the broad spectral tuning of the optical gain characteristics of triple cation (containing methylammonium, formamidinium and cesium) mixed-halide perovskite thin films. We explicitly study the interrelation between amplified spontaneous emission (ASE) thresholds, the operational stability of the gain, and the material composition. The incorporation of cesium and a deficiency of lead in the precursor solutions is found to be crucial for low ASE thresholds and the improved stability
of mixed-halide perovskites. We tune the photoluminescence in mixed-halide perovskites between peak wavelengths of 510 and 790 nm by exchanging the halide from iodide to bromide and chloride in small steps of 10%, while preserving the narrowband emission below a linewidth of 130 meV for all mixtures. The optical gain under ns-excitation can be tuned over a significant portion of this spectral window; we observe ASE emission in regions between 545 to 555 nm and 680 to 810 nm. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000076190
Veröffentlicht am 03.11.2017
DOI: 10.1364/OME.7.004082
Zitationen: 25
Web of Science
Zitationen: 25
Zitationen: 27
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mikrostrukturtechnik (IMT)
Universität Karlsruhe (TH) – Interfakultative Einrichtungen (Interfakultative Einrichtungen)
Karlsruhe School of Optics & Photonics (KSOP)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2017
Sprache Englisch
Identifikator ISSN: 2159-3930
KITopen-ID: 1000076190
HGF-Programm 43.23.04 (POF III, LK 01) Nanophotonics for Energy Conversion
Erschienen in Optical materials express
Verlag Optica Publishing Group (OSA)
Band 7
Heft 11
Seiten 4082-4094
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Dimensions
Web of Science
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