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Purpose – The purpose of this paper is to investigate the effect of boric acid as a flux on the formation of the akermanite phase and optical properties of SrMgSi2O7:Eu,Dy phosphors.Design/methodology/approach – The silicate‐based phosphor is prepared by sol‐gel method. Sr(NO3)2, Mg(NO3)2 · 6H2O, Dy2O3, Eu2O3, are added to distilled water in their stoichiometric ratio, the obtained solution are mixed with H3BO3 (in the range of 0.01‐0.5 mol%) and a polymeric compound TESO (C8H2O4Si). At the end, the phase composition and optical properties are investigated using X‐ray diffraction (XRD) and spectrophotometer analysis, respectively.Findings – The XRD results showed that the akermanite (Sr2MgSi2O7) is the only crystalline phase which is detected in the sample containing 0.05 mol% boric acid. Increasing of boric acid does not have a great effect on the XRD patterns intensity. Spectrophotometer analysis results show three maximum at 365, 395 and 430 nm on the excitation spectra. It also shows intensity of the ... |
