SKM 2023 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 35: Poster Session II

CPP 35.52: Poster

Mittwoch, 29. März 2023, 11:00–13:00, P1

Luminescence properties of Nd complexes and processing of photonic crystal structures — •Miriam Gerstel¹, Ingo Köhne², Paul Mertin³, Bernd Witzigmann³, Johann Peter Reithmaier¹, Rudolf Pietschnig², and Mohamed Benyoucef¹ — ¹Institute of Nanostructure Technologies and Analytics — ²Institute of Chemistry, CINSaT, University of Kassel, Germany — ³EEI Department, Friedrich-Alexander University of Erlangen-Nürnberg, Germany

Lanthanide ion luminescence exhibits characteristic narrow emission bands along with relatively long emission lifetimes which makes them attractive for applications in lighting, sensing, and display technologies. We investigate the optical characteristics of phosphonate ester-supported nitrite and chloride neodymium(III) complexes as solid bulk material and in solution. Optical properties of Nd complexes are determined by photoluminescence (PL) spectroscopy, which reveals emission bands of Nd(III) ions in the NIR region. PL measurements of equimolar solutions reveal information about the emission strength of the complexes with different ligand types. Temperature-dependent PL spectra enable the assignment of the emission lines observed around 880 nm. For light enhancement, molecules are 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 and the DFG grant-BE 5778/4-1.