Nature Communications (Sep 2019)
Manipulating energy migration within single lanthanide activator for switchable upconversion emissions towards bidirectional photoactivation
Abstract
Orthogonal light based control of biology is of interest, yet the synthesis of materials capable of this is complex. Here, the authors report on the synthesis of simpler upconversion nanoparticles which used cross-relaxation to change emission spectra from red to green light with a change in NIR wavelength.