Vol. 38, Issue 1, pp. 57-63 (2008)

Abstract

Nano- and microparticles of cerium dioxide having a cubic lattice with space group Fm3m, whose Ce⁴⁺ ions are partially substituted for Tb⁴⁺ and Tb³⁺ ions, are formed in the siliceous films and powders obtained with the help of the sol–gel technique. It is shown that saturation of the media with hydrogen leads to efficient sensitized luminescence from the ⁵D₄ state of Tb³⁺ ions due to the transfer of excitations from Ce³⁺ ions.