#upconversion

Landmark Solid Material Changes How We Use Sunlight - The ability of UV light to kill viruses and bacteria through photocatalytic reactions is an important application. However, only a small portion of sunlight falls within the UV range, leaving much of the spectrum unused.
Photon upconversion could be the key to solving this problem. It is the process of converting long-wavelength, low-energy photons to short-wavelength, high-energy photons via a process called “triplet-triplet annihilation”. https://scitechdaily.com/landmark-solid-material-changes-how-we-use-sunlight/ #UV #upconversion

Representation of core-shell lanthanide doped #nanoparticles for #upconversion (UCNPs) capped with oleic acid.
UCNPs can absorb two or more low energy #photons and convert them into one photon with higher energy, which is then emitted. As-prepared UCNPs are usually capped with hydrophobic oleic acid to prevent aggregation with other nanoparticles and to control their growth.
They are of particular interest for bio-imaging, bio-sensing and nanomedicine, but also for photovoltaic applications.
#SciArt #SciComm #Blender #Blender3d #Biology #Medicine #Nanomedicine #Chemistry #Physics #Photovoltaics