Morphology And Luminescence Characteristics of Yttriumdisilicate Doped with Yb3+, Er3+(Ho3+) and Tm3+

Abstract

Extended AbstractThe nanomaterials doped with optically active ions have attracted considerable attention, and most of the studies in the literature devoted to the fabrication and characterization of these materials due to their potential application in photonics and optoelectronics. This interest on such host materials steadily increased with the development of new and cheap synthetic methods. [1][2][3].The host lattice of yttrium silicate (SiO 2 -Y 2 O 3 binary system) shows a high refractory property, chemical stability. The host lattice of yttriumdisilicate (Y 2 Si 2 O 7 ) shows a high thermal and chemical stability. It has been shown that the structural phases due to its complex high temperature polymorphism are in the y, z, α, β, γ, and δ forms [4][5][6][7] ions. In order to understand the up conversion mechanisms of the observed emission bands, the up conversion emission intensity was measured as a function of excitation power. The calculated results indicated that slopes value of triple doped α-Y 2 Si 2 O 7 nanoparticles showed that the up conversion mechanism corresponding to green and red emissions occurred via two-photon transitions.