Bulletin of the Korean Chemical Society

  • 제35권7호
  • /
  • Pages.2148-2150
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  • 2014
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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A Novel Single-Source Precursor Route for the Synthesis of Blue-Green Phosphor SrS:Ce3+

  • Song, Yishan (Department of Chemistry, College of Food Science & Technology, Shanghai Ocean University) ;
  • Li, Zheng (Department of Chemistry, College of Food Science & Technology, Shanghai Ocean University) ;
  • Ma, Chenchen (Department of Chemistry, College of Food Science & Technology, Shanghai Ocean University)
  • 투고 : 2014.01.09
  • 심사 : 2014.03.06
  • 발행 : 2014.07.20
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초록

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Experimental

Preparation of SrS:Ce3+ phosphor. In a typical synthesis, 99 mol % of SrCl2·6H2O and 1 mol % of Ce(NO3)3·6H2O were dissolved in 95% ethanol, and the solution was stirred for 2 h to form a homogeneous solution. Then another Na-DDTC (DDTC = N,N-diethyldithiocarbamate) ethanol solution (the DDTC/Sr2+ ratio was 2:1 with a slight excess of ligand) was added slowly to the metal salt solution under stirring condition. The stirring of the resultant solution was continued for another 2 h (the solution was concentrated by solvent evaporation), which resulted in precipitation of the yellow colored Sr0.99Ce0.01-DDTC2 complex. The precipitate of product was filtered and then dried at 40 ℃ for 6 h. The solid was then fired in a tube furnace at 700 ℃, 800 ℃, and 900 ℃ for 3 h under N2 atmosphere.

Measurements and Apparatus. The X-ray powder diffraction (XRD) patterns of all samples were performed on a Bruker/D8-Advance with CuKα radiation (λ = 1.540 Å). The luminescence (excitation and emission) spectra for the solid sample were determined with a Perkin-Elmer LS-55 spectrophotometer, whole excitation and emission slit width were 10 and 5 nm, respectively.

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피인용 문헌

  1. Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects vol.117, pp.5, 2017, https://doi.org/10.1021/acs.chemrev.6b00691