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利用溶胶－凝胶法制得了 Ｅｕ~（３＋）掺杂ＳｉＯ_２气凝胶薄膜，并对其发光及跃迁性质进行了研究．使用原子力显微镜对样品的型貌结构做了观测，采用ＸＲＤ和ＩＲ对所得样品的结构进行了研究，测量了样品的激发－发射光谱、吸收光谱和时间分辨光谱．通过Ｊｕｄｄ－Ｏｆｅｌｔ理论计算了Ｅｕ~（３＋）的~５Ｄ_０的辐射跃迁几率，并根据时间分辨光谱研究了~５Ｄ_１的无辐射跃迁几率及弛豫性质．虽然结果与掺Ｅｕ~（３＋）的体硅玻璃没有很大差别，但可通过此简易低温的方法制得掺稀土离子的良好薄膜，这对得到具有轻质玻璃性质的发光薄膜展示了广阔应用前景．
The Eu 3+ -doped SiO 2 aerogels films were prepared by sol-gel method and their luminescence and transition properties were studied. The morphology of the sample was observed by atomic force microscopy. The structure of the sample was studied by XRD and IR. The excitation - emission spectra, absorption spectra and time resolved spectra of the samples were measured. According to the Judd-Ofelt theory, the radiation transition probability of ~ 5D_0 Eu ~ (3+) was calculated and the nonradiative transition probability and relaxation properties of ~ 5D_1 were studied by time-resolved spectroscopy. Although the result is not very different from that of bulk silica doped with Eu 3+, a good thin film doped with rare earth ions can be obtained by this simple and low temperature method, which has shown broad application in obtaining light-emitting thin films with light glass properties prospect.