Preparation of blue-emitting CaMgSi2O6:Eu2+ phosphors in reverse micellar system and their application to transparent emissive display devices

Blue-emitting Eu2+-doped CaMgSi2O6 phosphors were prepared by the reverse micelle method. The resultant particles were nanocrystalline with a grain size of about <300 nm and exhibited a characteristic blue emission spectrum centered at 445 nm induced by the oxygen coordinated Eu2+ ions. By using the corresponding nanophosphors followed by the formation of a uniform phosphor layer, we have demonstrated the mini-sized transparent plasma-discharge panels and investigated their luminance characteristics. Phosphor coated panel is properly transparent, ≥65%, at the visible wavelength region and illuminates a characteristic blue emission under Ne/Xe plasma discharge conditions. Thus, we can obtain a fast decaying, robust blue-emitting silicate phosphor layer under excited plasma radiation for upcoming emissive display devices like as transparent and three-dimensional plasma display panels.

Blue-emitting CaMgSi2O6:Eu2+ nanophosphors coated transparent luminescent layers can be obtained. It illuminates the characteristic blue emission, spectrum centered at 425 nm wavelength, under the Ne–Xe mixed gas plasma discharge condition.Figure optionsDownload as PowerPoint slideHighlights
► Blue-emitting CaMgSi2O6:Eu2+ nanophosphors via reverse micelle method.
► Transparent blue-emitting layer was prepared by using corresponding phosphors.
► Fast decaying with degradation-free luminescent layer under plasma radiation.
► Promising luminescent layer for the upcoming plasma discharged transparent displays.