| 摘要 |
A long afterglow luminescent material of the formula aMO·bM' (S ² Se 1-² )·CAl 2 O 3 ·d B 2 O 3 .eP 2 O 5 : xEu·yLn, wherein M is/are selected from Sr, Ca, Ba, and Mg, and any combinations thereof; M' is/are selected from Sr, Ca, and Ba, and any combinations thereof; Ln is/are selected from Nd, Dy, Ho, Tm, La, Ce, Er, Pr, Bi, and Sm, and any combinations thereof; a, b, c, d, e, x and y are mole ratios, wherein 0.5<a<6.0, 0.0001‰ b‰ 2.0, 0.5‰ c‰ 9.0, 0‰ d‰ 1.0, 0‰ e‰ 1.0, 0.00001‰ x‰ 0.25, 0.00001‰ y‰ 0.3, 0‰ ²‰ 1.0, 0.5<(a+b)‰ 6.0, 0<(d+ e)‰ 1.0. The preparation process thereof is a high temperature solid-state reaction comprising an oxidation stage and a subsequent reduction stage. |
