| 摘要 |
<p>A method for preparing a phosphor of the formula: Ln2O2S:Ln min wherein Ln is at least one element selected from the group consisting of Gd, Y, Lu and La, and Ln min is at least one element selected from the group consisting of Eu, Tb, Sm and Pr, which comprises adding to Ln2O3 and Ln min 2O3 a flux containing boron oxide and a sulfiding agent, followed by baking.</p> |
