Enhanced luminescent efficiency of backlight's blue phosphor by microwave irradiation

BaMgAl₁₀O₁₇:Eu²⁺ phosphor has been widely used blue phosphor for plasma display panel and lamp. Highly luminescent efficiency blue-light phosphors have been successfully produced by microwave irradiation treatment. The SEM images and XRD analysis reveal that the particle morphology of the blue-light phosphors can be notably modified from sheet-like to spherical shape by microwave irradiation and better crystallinity can be obtained. In addition, the vacuum ultraviolet (VUV) PL spectra shows that the microwave irradiation treatment can effectively enhance the luminescent efficiency by a factor of 2.5 for intensity in comparison with that without microwave treatment. These results demonstrate that such a simple approach provide the synthesis of highly luminescent efficiency phosphors for optoelectronic applications.