本发明公开一种ScF3:Cr3+近红外荧光粉的少溶剂制备方法,包括以下步骤:精确称取一定量的氧化钪(Sc2O3),氟化铬(CrF3·mH2O)和氟化氢铵(NH4HF2)作为原料;将原料装入塑料烧杯中并加入少量超纯水作为溶剂充分搅拌混合均匀,将所得前驱体冷冻干燥后在C粉还原气氛下进行后续热处理,得到分解产物;将冷却后的分解产物...
We have obtained the absorption, excitation, and emission spectra, and the emission decay measurements for Cr3+ in the compounds ScF3 and Sc2O3. Both of these materials have sixfold coordinated metal sites that are available for substitution by Cr3+. From the analysis of the broadband spectra...