STUDY OF OPTICAL AND LUMINESCENT PROPERTIES OF POTASSIUM-ALUMINA-BORATE GLASS DOPED WITH Cr³⁺ IONS

Potassium-alumina-borate glass doped with chromium ions have been synthesized and investigated, and results are presented. We have synthesized glass of 25K₂O-25Al₂O₃-50B₂O₃ speciation with addition of 0.2 weight per cent of Cr. It was found out, that heat treatment induces changes in absorption and photoluminescence spectra. According to x-ray diffraction measurements, it has been shown that Al₄B₂O₉ nanocrystalls have been obtained. The average diameter of nanocrystalls is 15 nm. Luminescence spectra have shown that Cr³⁺ ions are in an octahedral crystalline surrounding of the alumina ions similar to the spectrum of ruby crystal. A conclusion has been done that nanocrystalls of Al₄B₂O₉: Cr³⁺ are obtained, most probably, in the researched glass. Synthesized material can be used as the base for fiber amplifier in data-transmission systems and as an active substance for medical lasers.

1. Stepanov S.A., Zapalova S.S., Nikonorov N.V., Aseev V.A. Spectral-luminescent properties of trivalent chromium ions in glass of the system K₂O-Al₂O₃-B2O3. Glass Physics and Chemistry, 2015, vol. 41, no. 2, pp. 151–156.
2. Stepanov S.A. The behavior of the iron ions in glasses of the system K₂O–Al₂O₃–B₂O₃. Inorganic Materials, 1974, vol. 10, pp. 1864–1871.
3. Aseev V.A., Zhukov S.N., Nikonorov N.V., Rokhmin A.S., Kuleshov N.V., Kuril’chik S.V., Yasyukevich A.S., Mudryi A.V. Spectral luminescence characteristics of forsterite nano glass ceramics doped with chromium ions. Optics and Spectroscopy, 2015, vol. 118, no. 1, pp. 146–150. doi: 10.1134/S0030400X15010026
 

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