Freiburg 2019 – wissenschaftliches Programm
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FM: Fall Meeting
FM 83: Poster: Enabling Technologies Sources of Quantum States of Light
FM 83.12: Poster
Donnerstag, 26. September 2019, 16:30–18:30, Tents
Optical and morphological characterizations of lanthanide complexes — •Miriam Gerstel1, Ingo Köhne2, Artur Lik2, Rudolf Pietschnig2, Johann Peter Reithmaier1, and Mohamed Benyoucef1 — 1Institute of Nanostructure Technologies and Analytics (INA) — 2Institute of Chemistry, CINSaT, University of Kassel, Heinrich-Plett-Str. 40, 34132 Kassel, Germany
Reliable single-photon sources based on semiconductor or molecular systems are of great interest since they are key elements in promising quantum technology applications. However, complex methods of quantum information processing require a large number of indistinguishable photons. Lanthanide complexes are regarded as attractive luminescent materials due to characteristic narrow emission bands, wide emission spectrum and long lifetime. To enhance the absorbance and thus the emission intensity of transitions, utilizing ligands to sensitize the lanthanide emissions is a suitable choice.
For characterization of synthesized lanthanide molecules, the complexes are dissolved in proper solvent and spin-coated on a substrate. To achieve a low density molecule distribution, the influence of preparation and modification of the substrates, choice of solvent, and concentration of the solution is examined. Morphology and homogeneity of the molecules are discussed. Optical properties of lanthanide complexes are determined by photoluminescence spectroscopy, which reveal emission spectra at visible wavelength region.
This work is supported by the state of Hesse in the frame of LOEWE priority project SMolBits.