Quantum Efficiency Enhancement of Lead-Halide Perovskite Nanocrystal LEDs by Organic Lithium Salt Treatment

Surface-defect passivation is key to achieving high photoluminescence quantum yield in lead halide perovskite nanocrystals. However, in perovskite light-emitting diodes these surface ligands also have to enable balanced charge injection into the nanocrystals to yield high efficiency and operational...

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Veröffentlicht in:	arXiv.org 2022-03
Hauptverfasser:	Naujoks, Tassilo, Jayabalan, Roshini, Kirsch, Christopher, Zu, Fengshuo, Mandal, Mukunda, Wahl, Jan, Waibel, Martin, Opitz, Andreas, Koch, Norbert, Andrienko, Denis, Scheele, Marcus, Brütting, Wolfgang
Format:	Artikel
Sprache:	eng
Schlagworte:	Charge injection Crystal structure Dipoles Efficiency Emitters Energy levels Excitons Free surfaces Halides Lattice vacancies Lead compounds Ligands Light emitting diodes Lithium Metal halides Nanocrystals Passivity Perovskites Photoluminescence Quantum efficiency Surface defects
Online-Zugang:	Volltext
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