earticle

영어

In this paper, high luminescent red, green and blue phosphors were synthesized by combinatorial chemistry with bodies and activators, which are (Y2O3:Eu2+Gd2+)B2O3 and Y2O3 : Eu2O3 : Gd2O3 for red, BaMg2Al16O27:Eu2+ Mn2+ and Eu2O3 : Mn2O3 for green, BaMg2Al16O27:Eu2+　Ce2+ and CeO2 : Eu2O3 for blue respectively. In order to investigate crystalline property of phosphorous body according to calcinatonal temperature, BaMg2Al12O19(blue phosphor) were calcinated at 1200, 1250, 1300 and 1400℃ respectively, studied by XRD. At result of XRD patterns, fluorescent phosphors synthesized at above 1300℃ are higher crystalline. The red phosphor only composed of the rare-earth elements as body and activator exhibits stronger intensity than that used Al2O3 as body and V2O3 as activator. Green phosphors synthesized with MnO or Mn2O3 as activator, show the different crystallization, spectrum intensity of them with Mn2O3 is higher. Being added with BaCO3 and CeO2 : Eu2O3 as activator, in the synthesis of blue phosphors, the crystallization and spectrum intensity of them are higher. Especially, blue phosphor added with CeO2 exhibits higher spectrum intensity and strong XRD peak.