Burikov, S.; Filippova, E.; Proydakova, V.; Kuznetsov, S.; Voronov, V.; Tabachkova, N.; Dolenko, T. The Influence of Concentrations of Sensitizers and Activators on Luminescence Kinetics Parameters of Up-Conversion Nanocomplexes NaYF4:Yb3+/Tm3+. Photonics 2024, 11, 228. doi.org/10.3390/