Mechanistic investigation of photon upconversion in Nd(3+)-sensitized core-shell nanoparticles.
Mechanistic investigation of photon upconversion in Nd(3+)-sensitized core-shell nanoparticles.
Xiaoji Xie,Nengyue Gao,3 Authors,Xiaogang Liu
2013 · DOI: 10.1021/ja4075002
Journal of the American Chemical Society · 675 Citations
TLDR
The core-shell design enabled high-concentration doping of Nd(3+) (~0 mol %) in the shell layer and thus markedly enhanced the upconversion emission from the activators, providing highly attractive luminescent biomarkers for bioimaging without autofluorescence and concern of overheating.