Abstract
The compounds of different composition with garnet structure, doped with Ce3+, have been obtained by co-precipitation method with use of partial substitution of Y3+ and Al3+ onto La3+ and Ga3+. The crystal structure of the substituted materials has been studied in detail by neutron diffraction. The nature and concentration of substituent cations have been shown to influence the structural parameters and luminescence spectra of (Y1 –хLaх)3(Al1 –уGaу)5O12:Ce3+ compounds. Changes in the geometry of the oxygen dodecahedra have the strongest effect on Ce3+ luminescence in the substituted materials.
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