long-afterglow luminescent material rare earth co-activated multiple waterproof.

摘要

A luminescent material afterglow co-activated multiple rare-earth waterproof, with a chemical composition described by the formula aMO-bAl2O3-CSIO2-dGa2O3: XEU-yB-zN wherein a, b, c, d, x, y and z are coefficients with intervals of 0.8 a 1.2, 0.8 b 2, 0.002 c 0.061, 0.005 d 0.5, 0.005 x 0.1, 0.02 y 0.5, and 0.005 z 0.05 .; M is at least one of the elements Ca or Sr and N is at least one of the elements Dy or Nd.