Gold Nanoparticles Embedded Erbium-Lead-Tellurite Glass: Bonding Parameters Evaluation

Abstract:

Au NPs contents dependent modifications in the absorption and bonding parameters are inspected. Glass systems with composition (79-y)TeO₂ – 15PbO – 5PbCl₂ – 1Er₂O₃ – (y)AuCl₃ where 0.0 ≤ y ≤ 0.1 mol% are prepared and characterized using X-ray Diffraction (XRD). The absorption characteristics of the glass are observed using UV-Visible-NIR (UV-VIS-NIR) spectrophotometer. XRD spectra confirm the amorphous nature of all samples. UV-VIS-NIR spectra reveal seven absorption bands centered at about 490, 526, 551, 652, 800, 982 and 1520 nm originating from ⁴I_15/2 to ⁴F_7/2, ²H_11/2, ⁴S_3/2,⁴F_9/2, ⁴I_9/2, ⁴I_11/2 and ⁴I_13/2 transitions, respectively. The low value of indicated an increase in the covalency and the positive sign of for all glass systems indicates the bonding between the RE ions and the surrounding ligand is covalent in nature.

• Periodical: Solid State Phenomena (Volume 268)
• Pages: 97-101
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.268.97
• Online since: October 2017
• Authors: E.S. Sazali*, M.R. Sahar, Sib Krishna Ghoshal
• Keywords: Bonding Parameter, Gold Nanoparticles (AuNPs), Tellurite, UV-VIS-NIR, X-Ray Diffraction (XRD)

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