利用柠檬酸-凝胶方法,以Y2O3,Eu2O3,Tb4O7和Al(NO3)3·9H2O作为初始原料,柠檬酸作为配位剂,成功制备出了Y3Al5O12:Eu3+(Tb3+)发光材料,其烧结温度为1?000℃,时间4?h.通过X射线衍射测试,表征Y3Al5O12为单相;计算其晶胞参数,发现晶胞体积v随着pH值的增大而增大.对Y3Al5O12:Eu3+(Tb3+)系列样品在紫外光谱区域和真空紫外光谱区域的发光性能进行了研究,结果表明:在真空紫外光谱区域激发下,Eu3+(Tb3+)的猝灭浓度比在紫外光谱区域激发下的低.%By using inorganic salts(Y2O3,Eu2O3,Tb4O7 and Al(NO3)3·9H2O)as raw materials and citric acid as a chelating agent,Y3Al5O12:Eu3+(Tb3+) can be successfully prepared by a citrate-gel method.An XRD test shows that single crystalline phase of Y3Al5O12 is obtained at 1000℃ with a period of 4 hours.The crystal cell volume increases with the pH value.The photoluminescence characteristics of Y3Al5O12:Eu3+(Tb3+) within the UV and VUV spectra indicate that the quenching concentration of Eu3+(Tb3+)in the VUV spectrum is thinner than that in the UV spectrum.
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