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Title of Journal: J Mater Sci Mater Electron

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Abbravation: Journal of Materials Science: Materials in Electronics

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Springer US

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1573-482X

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Investigation of luminescent properties of redemi

Authors: Md Masuqul Haque HongIn Lee K N Hui
Publish Date: 2015/05/09
Volume: 26, Issue: 7, Pages: 4754-4762
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Abstract

Eu3+doped redemitting BaGdB9O16 phosphors were synthesized via a sol–gel process and the conventional solid state method No concentration quenching of Eu3+ was observed in this research work The effect of Ca2+ and Sr2+ on the luminescence of BaEuB9O16 BEB phosphor was also investigated The partial replacement of Ba2+ by Sr2+ could improve the luminescence intensity of BEB phosphor remarkably The luminescent intensity of sol–gel derived is comparable with the solid state product and it is about 92  of solidstate product prepared at 950 °C under 395 nm light excitation The emission intensity of the sol–gel derived phosphor is about 10 times higher than that of Y195Eu005O2S at 395 nm light excitation Compared with the molybdate based recently reported redemitting phosphors the emission intensity of our obtained novel phosphors synthesized by various methods are much stronger under 395 nm excitation Due to high emission intensity and good excitation profile these phosphors can be used as redemitting phosphor in solidstate lighting to generate white light

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