Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1495431 | Optical Materials | 2012 | 4 Pages |
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.