Structural and Optical Properties of Ho³⁺ Doped ZnO-Bi₂O₃-B₂O₃ Glasses

Abstract:

Ho³⁺ doped zinc bismuth borate glasses of the composition 10ZnO : 30Bi₂O₃ : (60-x)B₂O₃ : xHo₂O₃ (where x = 0.0, 0.2, 0.4, 0.6, 0.8 and 1.0 mol%) were fabricated by conventional melt quenching technique. In order to understand the role of Ho₂O₃ in these glasses, the density, molar volume and optical spectra were investigated. The molar volume decreases with an increase in Ho₂O₃ content, which is attributed to the structure becomes more compacted. The absorption spectra of Ho³⁺ doped in zinc bismuth borate glass correspond to several bands, which are assigned from the ground state, ⁵I₈ to ⁵G₅ (420 nm), ⁵G₆ + ⁵F₁ (451 nm), ⁵F₂ + ⁵F₄ (538 nm), ⁵F₅ (643 nm) and ⁵I₅ (1152 nm). Moreover, the optical basicities were also theoretically determined.

• Periodical: Advanced Materials Research (Volume 979)
• Pages: 98-101
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.979.98
• Online since: June 2014
• Authors: Parnuwat Chimalawong*, Keerati Kirdsiri, Jakrapong Kaewkhao, Pichet Limsuwan
• Keywords: Absorption Spectra, Density, NBOs, Optical Basicity, Rare-Earth Ions (REⁿ⁺), Zinc Bismuth Borate Glass

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