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应用燃烧法在空气中较低的温度(<900℃)下成功地合成了SrO·xAl2O3∶Eu2+,Dy3+稀土纳米长余辉发光材料,并研究了炉温、反应物中铝锶比、助溶剂和可燃物等对发光材料性能的影响。研究结果表明,反应物置于温度为600℃的高温炉中时燃烧得到的产物性能最好,发光粉的粒径在70nm左右,发射光谱的最大波长在520nm左右。与其它合成方法相比,该方法具有合成温度低、反应时间短,获得的产物疏松、硬度小、粒度小等优点。
SrO · xAl2O3:Eu2 +, Dy3 + rare earth nanostructured long lasting luminescent materials were successfully synthesized by combustion method at low temperature (<900 ℃) in air. The effects of furnace temperature, ratio of aluminum to strontium in the reactants, co-solvent and Combustibles and other effects on the performance of light-emitting materials. The results show that when the reactants are placed in a high temperature furnace at a temperature of 600 ℃, the product obtained by combustion has the best performance. The diameter of the luminescent powder is about 70nm and the maximum wavelength of the emission spectrum is about 520nm. Compared with other synthetic methods, this method has the advantages of low synthesis temperature, short reaction time, loose product, small hardness and small particle size.