稀土多元共激活长余辉发光材料
2022-07-31
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本发明涉及一种稀土多元共激活长余辉发光材料,其化学组成为:aMO·bAl2O3·cSiO2·dGa2O3 : xEu·yB·zN,a、b、c、d、x、y和z为系数,0.5≤a≤2,0.5≤b≤3,0.001≤c≤1,0.0001≤d≤1,0.0001≤x≤1,0.0001≤y≤1,0.0001≤z≤1;M为Ca或Sr,N为Dy或Nd。其中,Sr(或Ca)、Al、Si、Ga为基质元素,Eu、B和Dy(或Nd)元素为激活剂。本发明提供的长余辉发光材料不但具有余辉时间长的优点,且耐水性要远超现有的铝酸盐稀土长余辉材料。