Abstract
Series of Y(2−x)Zr2O7:xEu3+ red-emitting phosphors have been synthesized by a combustion route and their structures and photo-luminescent properties have been investigated at room temperature. Powder X-ray diffraction analysis shows structural purity of as-synthesized phosphor. Topographical study of prepared sample is done through scanning electron microscopy. Emission spectra show an intense red emission at 609 nm due to 5D0 → 7F2 transition of Eu3+. Intensity of 5D0 → 7F2 emission (activated at wavelength of 264 nm) is found to increase with the doping concentration of Eu3+. Under UV excitation, Y2Zr2O7:Eu3+ shows emission in red region corresponding to 5D1 → 7F2 transition of Eu3+ ion. The emission spectra exhibit red performance (CIE chromaticity coordinates: x = 0.662, y = 0.337), which is due to 5D0 → 7FJ transitions of Eu3+ ions.
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