【摘要】 <正> 制备无机固体材料大都采用高温固相反应,1971年Dislich报导了用溶胶-凝胶法制备多组份固体材料。近年来,有报导利用此法研制玻璃、玻璃陶瓷和陶瓷。我们在过去工作的基础上,合成了SrO-Al₂O₃-SiO₂:Eu³⁺,Bi³⁺发光体,研究了从凝胶至发光晶体的转变过程、Eu³⁺和Bi³⁺在SrO-Al₂O₃-SiO₂基质中的发光性质以及Bi³⁺对 EU³⁺的能量传递。更多还原

【Abstract】 In this paper, 1-14SrO-0.5Al₂O₃-4.5SiO2:0.05Eu³⁺, 0.005Bi³⁺ was prepared at 850℃by the sol-gel method. Optimum conditions wcre judged by the relative intensity of lumi-nescence.Transition of gel to luminophor was investigated by TG:DTA, XRD and IR spe-ctroscopy.The luminescent properties of Eu³⁺and the energy transfer from Bi³⁺to Eu³⁺were discussed according to the emission and excitation spectra of the luminophor.更多还原