Title: Upconversion Luminescence of Silica–Calcia Nanoparticles Co-doped with Tm3+ and Yb3+ Ions
Authors: K. Halubek-Gluchowska, D. Szymański, T.N.L. Tran, M. Ferrari, A. Lukowiak
Journal: Materials
Publication type: article
DOI: 10.3390/ma14040937