Abstract
Calcium stannate oxide (Ca2SnO4) compound doped with Ce3+ rare earth ion was synthesized by conventional solid state synthesis method at 1300°C. Phase confirmation and crystal structure analysis was done by obtaining its X-ray diffraction (XRD) pattern. The vacuum ultraviolet (VUV) – visible spectroscopic properties were investigated. Ca2SnO4:Ce3+ phosphor possesses broad and strong absorption in VUV and UV region. Excitation peaks are present at 140nm, 174nm, 200nm and 261nm. Ca2SnO4:Ce3+ exhibits intensive photoluminescence (PL) emission centered at 430nm and 467nm under VUV excitation. CIE chromaticity co-ordinates were calculated. The luminescence properties of Ca2SnO4:Ce3+ compound make it good candidate as a blue phosphor for mercury-free lamps and plasma display panel (PDP) applications.
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