Photoluminescence Centers in Porcelain

Аннотация

Time-resolved luminescence with excitation by molecular-nitrogen laser radiation was used to study samples of porcelain. A combination of bands of optically active centers [OAC] was found in the photoluminescence spectra of hard, soft, and bone porcelain: proper centers Î^*_Si and Î^*_Al and impurity centers Mn²⁺, Cr³⁺, Fe³⁺, Dy³⁺, and Sm³⁺ as well as molecular centers [UO₂]²⁺. Aband of the OAC Fe³⁺, differing in intensity, was identified in all three porcelain samples.