Article ID Journal Published Year Pages File Type
1495431 Optical Materials 2012 4 Pages PDF
Abstract

A new NaAlSiO4:0.1Eu2+ phosphors were synthesized at different temperatures using a liquid phase precursor (LPP) technique. The XRD patterns indicate the presence of hexagonal nepheline phase for all the samples. The synthesized phosphors can be excited efficiently in the broad near-UV region. The PL emission spectra showed a broad emission peak at around 551 nm corresponding to 5d → 4f transition of Eu2+ ions. The synthesized phosphors showed better thermal stability when compared with the standard YAG:Ce3+ phosphor.

► A novel greenish yellow phosphor NaAlSiO4:Eu2+ has been synthesized by a new technique. ► The photoluminescence properties were found to be influenced by the crystal structure of the phosphors. ► The broad excitation wavelength and good emission properties suggest their potential applications in near-UV white LEDs. ► Thermal stability of the phosphor was better than the standard YAG:Ce3+ phosphor.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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