| 摘要 |
PURPOSE: A vanadate-based red phosphor with enhanced luminescent property is provided to improve luminous efficiency by addition ions of vanadate-based phosphor showing high absorption peak in a long wavelength UV area of 250 ~ 400 nm. CONSTITUTION: A vanadate-based red phosphor with enhanced luminescent property is represented by chemical formula 1: Ca3Srx(VO4)4 : Euy,Az. In chemical formula 1, 0 < x < 3, 0 < y <= 1, 0 < z <= 1, A is alkali metal. A method for manufacturing a vanadate-based red phosphor comprises the steps of: preparing a mixture by weighting a calcium precursor, a strontium precursor, a vanadium precursor and a europium precursor; drying the mixture at 100 ~ 150 °C; and heat-treating the dried mixture at 900 ~ 1200 °C.
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