Luminescence properties of a novel promising red phosphor LiY9(SiO4)(6)O-2:EU3+

摘要

A novel red-emitting phosphor LiY9(SiO4)(6)O-2:Eu3+ has been synthesized by a high-temperature solid-state reaction. X-ray powder diffraction (XRD) analysis confirmed the phase formation of LiY9(SiO4)(6)O-2:Eu3+ materials. The photoluminescence excitation and emission spectra, and the concentration dependence of the emission intensity of the phosphor were investigated. The results showed that the phosphor could be efficiently excited by the near ultraviolet (NUV) light and blue light, and it exhibited red light emission. The calculated color coordinates lies in the red region. Therefore, these obtained results suggest that the prepared phosphors exhibit great potential for use as red emitting phosphor for near ultraviolet white light emitting diodes (NUV WLEDs). (C) 2017 Elsevier B.V. All rights reserved.