학술논문
Cobalt-Doped Zinc-Borate Glasses: Preparation and Spectral Properties.
Document Type
Article
Source
Subject
*BORATE glass
*GLASS
*INFRARED spectra
*COBALT
*ZINC oxide films
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Language
ISSN
0361-7610
Abstract
New glassy materials in the system ZnO–B2O3:CoO system were obtained. The physicochemical and spectral properties of zinc borate glass doped with cobalt in the composition range 45 to 70 wt.% ZnO. The influence of the glass matrix on the coordination state of Co2+ ions is shown. Intense absorption bands in the visible range are attributed to the transitions 4A2(F) → 2A1(G), 4A2(F) → 4T1(P), and 4A2(F) → 2E(2G). An absorption band attributable to the electronic transition 4A2(4F) → 4T1(4F) of cobalt in tetrahedral coordination was found in the near-IR range (1.3 – 1.7 μm). [ABSTRACT FROM AUTHOR]