| 摘要 |
<p>The invention concerns a method for preparing a phosphor powder precursor composition, said composition being in the form of an aerogel, characterized in that it comprises the following steps: a) adding in an organic solvent, in the presence of water, different chemical elements required to obtain said precursor, said chemical elements being in soluble form; b) mixing while stirring at a temperature lower than the boiling point of the solvent, preferably at room temperature; and c) eliminating the solvent by autoclave drying at a temperature higher than the critical temperature of the solvent.</p> |
