Synthesis of green- and red-emitting nanophosphors for application to transparent plasma display panels

초록

Green-emitting LaPO4:Ce,Tb nanophosphors were produced via a modified citric acid-assisted sol-gel route. The optimized nanophosphors were subsequently dispersed in 2-methoxyethanol and highly transparent green-emitting nanophosphor layer was formed via a spin-coating of the dispersion. The spin-coating was repeated to increase the thickness of nanophosphor layer. Despite multiple coatings, all nanophosphor layers maintained an excellent visible transparency. Ultimately, using the nanophosphor layer deposited on glass substrate, transparent plasma display panels (PDPs) were fabricated and their luminance characteristic was described. Red-emitting nanophosphors of Y2O3:Eu or YVO4:Eu were also synthesized and utilized for fabrication of transparent plasma devices.

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