[1]
V. Laohakul, K. Boonyarattanakalin, W. Mekprasart, and W. Phoohinkong, “Characterization of Erbium and Ytterbium Co-doped TiO2 Synthesized Using the Sol-gel Process for Photon Up-conversion Applications”, Thai J. Nanosci. Nanotechnol., vol. 8, no. 1, pp. 1–10, Jun. 2023.