On the concentration dependence of the up-conversion process of Pr 3+ doped Li 2 CaSiO 4

Franziska Schröder, Stefan Fischer, Thomas Jüstel Up-conversion particles convert visible light into UV-C radiation upon illumination. The obtained UV spectrum is capable of inactivating exposed microorganisms. If particles are in the shade, UV radiation is no longer generated, which means that the user is not exposed to harmful UV radiation.
Source: Australian Journal of Chemistry - Category: Chemistry Authors: Source Type: research