| 摘要 |
FIELD: chemistry.SUBSTANCE: disclosed is a yellow afterglow material having the chemical formula aYO·bAlO·cSiO:mCe·nB·xNa·yP, where a. b. c. m, n. x and y are coefficients, where a is not less than 1 but not greater than 2, b not less than 2 but not greater than 3, c is not less than 0.001 but not greater than 1, m is not less than 0.0001 but not greater than 0.6, n is not less than 0.0001 but not greater than 0.5, x is not less than 0.0001 but not greater than 0.2, and y is not less than 0.0001 but not greater than 0.5, wherein Y, Al and Si are basic elements and Ce, B, Na and P are activators. Also disclosed is a method of producing the disclosed material and a light-emitting diode device using said material.EFFECT: making alternating current light-emitting diodes from luminescent materials.10 cl, 6 dwg, 4 tbl, 14 ex |
