Dresden 2017 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 79: Poster: New Materials
HL 79.13: Poster
Donnerstag, 23. März 2017, 15:00–19:00, P2-OG3
Optical properties of (CuI)-based inorganic-organic hybrid materials as active semiconductor in planar microcavities — •Lukas Trefflich1, Gabriele Benndorf1, Rüdiger Schmidt-Grund1, Harald Krautscheid2, and Marius Grundmann1 — 1Institute for Experimental Physics II, University of Leipzig, 04103 Leipzig, Germany — 2Institute for Inorganic Chemistry, University of Leipzig, 04103 Leipzig, Germany
We have investigated electronic and optical properties as well as temporal dynamics of (CuI)-based inorganic-organic hybrid materials using photoluminescence spectroscopy and ellipsometry. By changing the chemical composition bright light emission in the visible spectral range can be tuned from approximately 450 nm to 650 nm . We found the luminescence decay time to be in the microsecond range. Furthermore, we have determined the dielectric function from the far UV to mid IR range in order to design planar microcavities for possible laser and LED application. This is of particular interest because white light LEDs usually contain rare-earth elements. [1] Their mining is difficult and expensive. Because of the facile synthesis, high quantum yield (up to 95%), thermal stability and optical tunability [2], (CuI)-based inorganic-organic hybrid materials are promising alternatives.
H. Höppe, Angew. Chem., Int. Ed. 2009, 48, 3572
W. Liu et al., J. Am. Chem. Soc. 2015, 137, 9400-9408