TY  - CONF
A1  - Resch-Genger, Ute
T1  - Molecular and nanoscale emitters photophysics , photoluminescence quantum yields, and surface chemistry
N2  - Inorganic nanocrystals such as spectrally shifting lanthanide-based nanoparticles (LnNCs) like NaYF4: Yb, Er and semiconductor quantum dots, organic and inorganic particles stained with sensor molecules, and organic dyes showing aggregation-induced emission are meanwhile broadly applied in the life and material sciences. The identification of optimum particle architectures and molecular structures for photonic applications requires quantitative spectroscopic studies and methods to control and analyse particle surface chemistry. In the following, photoluminescence studies of different emitter classes are presented, thereby addressing the measurement of particle brightness and photoluminescence quantum yields in different spectral windows parameters required for an in-depth mechanistic understanding. In addition, examples for the quantification of surface functional groups on nanomaterials with optical spectroscopy are given.
T2  - GdCH Kolloquium
CY  - Düsseldorf, Germany
DA  - 11.11.2025
KW  - Dye
KW  - Fluorescence
KW  - Quantum yield
KW  - Lifetime
KW  - Sensor materials
KW  - Temperature
KW  - Cr(III) complex
KW  - Nano
KW  - Particle
KW  - Silica
KW  - Polymer
KW  - Metrology
KW  - Quality assurance
KW  - Reference material
KW  - Surface chemistry
KW  - Size
KW  - Shape
KW  - Particle number concentration
KW  - Method
KW  - Optical assay
KW  - qNMR
KW  - Validation
KW  - Potentiometry
KW  - XPS
PY  - 2025
AN  - OPUS4-64728
LA  - eng
AD  - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany
ER  -