Romanov Alexey N., Fattakhova Zukhra T., Alexander A Veber, Usovich Olga V., Haula Elena V., Korchak Vladimir N., Tsvetkov Vladimir B., Trusov Lev A., Kazin Pavel E., Sulimov Vladimir B. On the origin of near-IR luminescence in Bi-doped materials (II). Subvalent monocation Bi+ and cluster Bi5(3+) luminescence in AlCl3/ZnCl2/BiCl3 chloride glass // Optics Express, 2012, 20, № 7, с. 7212-7220.
Broadband NIR photoluminescence (from 1000 to 2500 nm) was observed from partially reduced AlCl3/ZnCl2/BiCl3 glass, containing subvalent bismuth species. The luminescence consists of three bands, assigned to Bi+, Bi24+, and Bi53+ ions. The physical and optical characteristics of these centers and possible contribution to NIR luminescence from bismuth-doped oxide glasses are discussed.
Optical amplifiers, fluorescent and luminescent materials, glass and other amorphous materials