Details

Autor(en) / Beteiligte

• Taniguchi, Kouta
• Honda, Tatsuya
• Kato, Ariyuki

Titel

Eu concentration dependence of luminescent properties of Sr1axEuxGa2S4 phosphors synthesized by polymerized complex sulfurization method

Ist Teil von

• Optical materials, 2013-09, Vol.35 (11), p.1993-1996

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Sr1axEuxGa2S4 (x = 0, 0.05, 0.1, 0.3, 0.5, 0.7, 1) phosphors were synthesized by new synthesis method, polymerized complex sulfurization (PCS) method and usual solid state reaction (SSR) method. The structural and luminescent properties of synthesized phosphors were compared in term of Eu concentration dependence. The lattice constants calculated from XRD patterns were found to obey Vegardas law for the samples synthesized by the PCS method. Quantum efficiency and luminance from EL elements prepared with the samples synthesized by PCS method were about twice as higher as those of SSR method in high Eu concentration range. These results suggest that uniform distribution of metal ions can be achieved by PCS method.