Growth and luminescent properties of Lu3(Ga,In)5O12:Eu3+ epitaxial films

Abstract

High quality thin epitaxial films of Lu₃(Ga,In)₅O₁₂:Eu³⁺ with high effective atomic number were grown by liquid phase epitaxy method. Excitation and emission spectra of Lu₃(Ga,In)₅O₁₂:Eu³⁺ epitaxial films were studied under UV and X-ray excitations. The photo- and X-ray luminescence spectra of Eu³⁺ ions in Lu₃(Ga,In)₅O₁₂:Eu³⁺ are characteristic to the f→f transition in the Eu³⁺ ions that occupied dodecahedral sites in the garnet structure. The ratio of the bands intensities in luminescence spectra under different types of excitation was determined.