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Sol–gel synthesis and photoluminescence of M2Gd8(SiO4)6O2: RE3+ (M = Ca, Sr; RE = Tb, Eu) phosphors by different silicate sources

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Abstract

Eight kinds of silicate sources were adopted to prepare M2Gd8(SiO4)5O2: RE3+ (M = Ca, Sr; RE = Eu, Tb) phosphors by the sol–gel method. Scanning electronic microscope (SEM) was used to compare the different configuration of patterns rely on eight different silicon sources. X-ray powder diffraction (XRD) also has been employed to analyze their microstructures and particle sizes further. All the phosphor show the characteristic emission 5D4 → 7FJ (J = 6, 5, 4, 3) of Tb ions and 5D0 → 7FJ (J = 1, 2) of Eu ions, indicating that the emission intensity is affected by the silicate sources.

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Acknowledgments

The work was supported by the National Natural Science Foundation of China (91122003) and Developing Science Funds of Tongji University.

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  1. Department of Chemistry, Tongji University, Shanghai, 200092, People’s Republic of China

    Lei Zhou & Bing Yan

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  1. Lei Zhou
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  2. Bing Yan
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Correspondence to Bing Yan.

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Zhou, L., Yan, B. Sol–gel synthesis and photoluminescence of M2Gd8(SiO4)6O2: RE3+ (M = Ca, Sr; RE = Tb, Eu) phosphors by different silicate sources. J Mater Sci: Mater Electron 24, 1168–1174 (2013). https://doi.org/10.1007/s10854-012-0900-9

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  • DOI: https://doi.org/10.1007/s10854-012-0900-9

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