| 摘要 |
<p>A photoluminescent material is prepared by either (i) pyrolyzing a H-resin in powder form in a crucible in oxygen, by heating the resin powder to a temperature above 350 DEG C for up to 180 min; or by (ii) preparing a gel from a solution of the resin in a solvent and pyrolyzing the resin gel in oxygen by heating the gel to a temperature above 350 DEG C for up to 180 min.</p> |
