摘要
利用燃烧合成法低温合成 Sr Al2 O4∶ Eu,Dy长余辉发光材料 .研究炉温、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 5 0 0℃的高温炉中发生点火燃烧得到的产物性能最好 ,发光时间超过 12 h,其发射光谱的最大波长在 5 2 0 nm左右 .与高温固相反应法比 ,该方法具有合成温度低 ,反应时间短 ,所得产物硬度小 ,发光亮度好等优点 .
Eu and Dy activated SrAl 2O 4 with long persistence phosphors has been synthesized by combustion method in low temperature. Influence of the ratio of Al and Sr, presence of additivs, etc. on the properties of the sample was studied. The results indicate that the best temperature of the oven for its synthesis is about 500 ℃. The afterglow can last more than 12 hours, and the emission spectra wave length is 520 nm. It is more bright, has low hardness, low temperature of synthesis and requires less time in synthesis when compared with products synthesized by high temperature solid-phase reactions.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2002年第5期655-657,共3页
Transactions of Beijing Institute of Technology
