In the bimonthly Debye lunch lectures, young scientists from the Debye Institute for Nanomaterials Science present their research.
This Debye Lunch Lecture, Quenching pathways in NaYF4:Er3+,Yb3+ upconversion nanocrystals, will be given by Freddy Rabouw from the Soft Condensed Matter & Biophysics and Inorganic Chemistry & Catalysis research groups.
Upconversion materials are unconventional color-conversion materials that can absorb low-energy and emit higher-energy photons. Despite over 10 years of development, it has not been possible to synthesize nanocrystals (NCs) with upconversion efficiencies on a par with what can be achieved in bulk materials. To guide the design and realization of more efficient upconversion NCs, a better understanding of the loss pathways competing with upconversion is necessary.