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Optica, Optics Express, 7(20), p. 7212, 2012

DOI: 10.1364/oe.20.007212

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On the origin of near-IR luminescence in Bi-doped materials (II) Subvalent monocation Bi^+ and cluster Bi_5 ^3+ luminescence in AlCl_3/ZnCl_2/BiCl_3 chloride glass

Journal article published in 2012 by Alexey N. Romanov, Zukhra T. Fattakhova, Alexander A. Veber, Olga V. Usovich, Elena V. Haula, Vladimir N. Korchak, Vladimir B. Tsvetkov, Lev A. Trusov, Pavel E. Kazin ORCID, Vladimir B. Sulimov
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

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.