Preparation and luminescence properties of CaMoO4:Eu3+/Sm3+ phosphors.

Autor: Zhao, Xiao‐fei, E., Namila, Wang, Xi‐gui
Zdroj: Luminescence: Journal of Biological & Chemical Luminescence; Sep2022, Vol. 37 Issue 9, p1446-1454, 9p
Abstrakt: Eu3+ and/or Sm3+‐doped CaMoO4 phosphors were prepared using a hydrothermal method. The X‐ray diffraction (XRD) results show that the sample is in a tetragonal CaMoO4 phase, the space group is I41/a (88), the lattice constants are a = b = 5.226 Å, c = 11.430 Å, and V = 312.2 Å3. We explored the effects of Eu3+ doping concentration, reaction temperature, preparation time, and the energy transfer relationship between Eu3+ and Sm3+ on the phosphors. The Commission Internationale de l'éclairage (CIE) calculation results indicated that under excitation by ultraviolet light at 283 nm, the CIE coordinates of some CaMoO4:Eu3+/Sm3+ materials are located in the near‐white light region, and could be used as potential candidates for single‐matrix white phosphors. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index