A new reductive DL-mandelic acid loading approach for moisture-stable Mn4+ doped fluorides

In this communication, a novel reductive DL-mandelic acid loading approach for moisture-stable Mn4+ doped fluorides is reported. After loading DL-mandelic acid, the characteristic luminescence properties of the treated Mn4+ doped potassium hexafluorogermanate remained unchanged, while the moisture-resistance property was significantly enhanced.