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Regensburg 2022 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 17: Poster 2

CPP 17.32: Poster

Tuesday, September 6, 2022, 11:00–13:00, P2

Characterization of Nd complexes and processing of photonic crystal structures — •Miriam Gerstel1, Muhammad Shaharukh1, Ingo Köhne2, Paul Mertin3, Rudolf Pietschnig2, Bernd Witzigmann3, Johann Peter Reithmaier1, and Mohamed Benyoucef11Institute of Nanostructure Technologies and Analytics (INA) — 2Institute of Chemistry — 3Institute of Computational Electronics and Photonics, CINSaT, University of Kassel, Germany

Lanthanide (Ln) ions are unique for applications in lighting, sensing, and display technologies. In our approach, we investigate the potential of using Ln(III) complexes as attractive luminescent materials due to its characteristics of narrow emission bands and wide emission spectrum. Two different types of Nd(III) complexes are investigated: Nd complexes with phosphonate ligands with varying aromatic residues and complexes where the Nd ion is incorporated in a polyoctahedral silsesquioxane cage. Optical properties of Nd complexes are determined by photoluminescence (PL) spectroscopy, which reveals three emission bands of Nd(III) ions in the NIR region. To achieve a lowdensity molecular distribution on the sample surface, the complexes are dissolved in dichloromethane and drop-casted on a flat surface. For light enhancement, molecules will be immobilized on photonic crystal cavities (PhCs). The fabrication of PhCs by electron-beam lithography, inductively coupled plasma reactive ion etching and selective wet etching techniques is discussed. This work is supported by the state of Hesse in the frame of LOEWE priority project SMolBits.

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