YAG:Eu²⁺ phosphor

We synthetized the Eu-doped Y₃Al₅O₁₂ (YAG) powder phosphors by solid state reaction under reducing atmosphere. We studied their structural, optical and paramagnetic properties by means of X-ray diffraction, time-resolved luminescence spectroscopy and electron paramagnetic resonance. Correlated measurements showed that the single Eu²⁺ ions are stabilized in YAG structure at yttrium position and give rise to 440 nm emission. Such a phosphor has potential for practical usage in solid state lighting..

¹Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 1999/2, 182 21 Prague 8, Czech Republic
²Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University in Prague, Brehova 7, Praha 1 11519, Czech Republic