ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 45, Number 5
JKCSEZ 45(5)
October 20, 2001 

The combinatorial approach has been applied to discover and optimize the composition of the novel or enhanced materials. In this study, we screened the optimum composition of the system SrO-Gd₂O₃-Al₂O₃ doped with Tb³⁺ by a polymerized-complex combinatorial chemistry method. Mixtures with compositions of Sr, Gd and Al component that is in the range from 0 to 1 in about 0.05 increments could be tested. The sample powders were synthesized by a polymerized complex method. To prepare appropriately polymeric precursors, we used the metallic nitrates, citric acid and ethylene glycol. The luminescence properties of the synthesized powders are investigated using the UV and VUV (Vacuum-UV: 147 nm) photoluminescence spectrometer. In addition, the crystallinity and morphology of powder were monitored by X-ray diffraction spectrometer and scanning electron microscopy. In result of VUV PL works, there are good luminescent samples with the composition of 0.595 < x < 0.733 and 0.016 < y < 0.017 in Gd_1-x-yAl_xTb_yO_δ and 0.049 < x < 0.064 and 0.02 < y < 0.039 in Sr_xAl_1-x-yTb_yO_δ, their materials can be applicable to plasma display panels as the green phosphor.