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Identification of nnp and npp Auger recombination as significant contributor to the efficiency droop in (GaIn)N quantum wells by visualization of hot carriers in photoluminescence

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Binder, M. ; Nirschl, A. ; Zeisel, R. ; Hager, T. ; Lugauer, H.-J. ; Sabathil, M. ; Bougeard, Dominique ; Wagner, J. ; Galler, B.
License: Allianz- bzw. Nationallizenz
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Date of publication of this fulltext: 19 Oct 2016 12:52


We report the direct observation of hot carriers generated by Auger recombination via photoluminescence spectroscopy on tailored (AlGaIn)N multiple quantum well (QW) structures containing alternating green and ultra-violet (UV) emitting (GaIn)N QWs. Optically pumping solely the green QWs using a blue emitting high power laser diode, carrier densities similar to electrical light-emitting diode ...


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