Eu2+/Sm3+ ions co-doped white light luminescence SrSiO3 glass-ceramics phosphor for White LED
MetadataShow full item record
Eu2+/Sm3+ co-doped silicate glass was prepared by high temperature melting under reducing atmosphere and the Eu 2+/Sm3+ co-doped SrSiO3 transparent glass-ceramics were obtained after heat-treatment. X-ray diffraction (XRD) and Raman spectra confirmed the formation of SrSiO3 nano-crystals in the glass matrix. The photoluminescence excitation (PLE) spectra and photoluminescence (PL) spectra of the samples were measured. A broad emission band from 400 nm to 550 nm due to the 4f65d1 ? 4f7 transitions of Eu2+ was observed, as well as several sharp emission peaks at 563 nm, 600 nm, 646 nm and 713 nm ascribed to the 4f ? 4f transitions of Sm3+. The luminescence properties of the glass ceramics with different molar ratio of Eu2+/Sm3+ were studied and the corresponding chromaticity coordinates were calculated. The ultraviolet light-emitting diode (UV-LED) excitable glass-ceramics emitting white light were obtained by tuning the relative emission intensity of Eu 2+ and Sm3+. The results indicate that the Eu 2+/Sm3+ co-doped SrSiO3 transparent glass-ceramics can be used as a potential matrix material for White LED under UV-LED excitation. © 2010 Elsevier B.V. All rights reserved.
Showing items related by title, author, creator and subject.
Structure and luminescence properties of Eu/Tb codoped oxyfluoride glass ceramics containing Sr 2GdF 7 nanocrystalsXin, F.; Zhao, S.; Xu, S.; Huang, L.; Jia, Guohua; Deng, D.; Wang, H. (2011)Eu/Tb codoped transparent oxyfluoride borosilicate glass ceramics containing Sr 2GdF 7 nanocrystals were fabricated under a reductive atmosphere and the conversion of Eu ...
Synthesis and luminescence properties of glass ceramics containing MSiO<inf>3</inf>:Eu<sup>2</sup> (M=Ca, Sr, Ba) phosphors for white LEDCui, Z.; Jia, Guohua; Deng, D.; Hua, Y.; Zhao, S.; Huang, L.; Wang, H.; Ma, H.; Xu, S. (2012)Eu2 doped silicate glasses were prepared of the system 52SiO248MO: xEu2(in molar ratio, M=Ca, Sr, Ba; x=1, 3, 5, 7, 9) by a high temperature melt-quenching method in a reducing atmosphere. Glass ceramics containing ...
Synthesis and characterization of lanthanum silicate oxyapatites co-doped with A (A = Ba, Sr, and Ca) and Fe for solid oxide fuel cellsCao, X.; Jiang, San Ping (2014)The co-doped lanthanum silicate oxyapatites, La9.5A0.5Si5.5Fe0.5O26.5 (A = Ba, Sr, and Ca), are synthesized by the high-temperature solid state reaction process. The phase formation and structure properties of undoped ...