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WLEDs are an important area of scientific research due to energy saving requirements. Red phosphors Ca8MgSm1-х(PO4)7:xEu3+ were obtained. The CIE color coordinates of freshly prepared Ca8MgSm0,25(PO4)7:0,75Eu3+ (x=0,650; y=0,345) are close to the red standard (x=0.67, y=0.33). The experimental data show that Ca8MgSm1-х(PO4)7:xEu3+ under exciting by near-ultraviolet radiation the studied solid solutions are promising red phosphorus for the manufacture of white-light emitting diodes.
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