Abstract
Preparation ofLi1−mAgmLa0.99−nYnPr0.01(MoO4)2phosphors was done by a convenient method of solid‐state reaction technique in the air. The effects of synthesis temperature, substitution ofAg+,Y3+on theLiLa(MoO4)2crystal structure, and luminescence properties ofPr3+in the molybdate host are investigated systematically. The observed excitation and emission spectra indicate that the phosphor can be excited effectively by the blue light (440–500 nm) and exhibit a satisfactory red emission at 605 and 649 nm, respectively. The substitution of a littleAg+forLi+enhances thePr3+luminescence intensity drastically. The variability ofY3+andLa3+content changes the emission intensity ratio of the1D2 → 3H4and3P0 → 3F2transition, so that theCIEchromaticity coordinates of the as‐preparedLi1−mAgmLa0.99−nYnPr0.01(MoO4)2phosphors are tuned from (0.639, 0.351) to (0.653, 0.337).
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