Influence of The Addition of Two Transition Metal Ions to Sodium Zinc Borophosphate Glasses for Optical Applications | ||||
| Egyptian Journal of Chemistry | ||||
| Article 17, Volume 64, Issue 12, December 2021, Page 7053-7058 PDF (733.23 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2021.79765.3921 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Aya Elbatal1; Mohammed A. Farag  2; Mohammed El-Okr3; Aly saeed4
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| 1Physics Department, Al-Safwa Higher Institute of Engineering and Technology, Cairo, Egypt | ||||
| 2Department of physics, Faculty of Science, Al-Azhar University | ||||
| 3Physics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt | ||||
| 4Mathematical and Natural Sciences Department, Faculty of Engineering, Egyptian-Russian University, Cairo, Egypt. | ||||
| Abstract | ||||
| Abstract Effect of Co and Mo ions on the sodium zinc borophosphate glasses network was investigated. Both structural and optical properties were studied by Xray diffraction, density, Infrared spectroscopy and optical absorption. Only a broad halo is observed in the X-ray diffraction patterns indicating the non-crystalline nature of the prepared samples. Density and related parameters such as molar volume and average boron-boron separation showed that the glass network became more compact by increasing Mo oxide. Fourier Transform Infrared (FTIR) results showed that the free Co - Mo sample revealed the formation of structural building units of the borate and phosphate glasses. The addition of Co and Mo oxides cause variation in structural sites of the glass formers which appear as a small change in the FTIR spectra. The Structural results showed that the small amount of Co and Mo cause a minor irregular change in the structural units of borophosphate glasses. The optical absorption spectra in UV-Visible regions were used to study optical d-d transitions of Co and Mo ions. No absorption bands were observed for the Co free with 1mol% Mo sample. This is indicating that the observed bands in the optical spectra are due to Co ions only. Analysis of the absorption spectra showed that the Co ions occupy both octahedral and tetrahedral sites. The calculated optical energy gap, Urbach energy and refractive index of all the prepared samples were found to be glass composition dependent. | ||||
| Keywords | ||||
| Transition metal; Brophosphate glasses; Structural and an optical property; filters | ||||
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