Wydział Chemii

Yu Yue

Mingya Fu

Yuying Yang

Wei Chen

Lili Hu

Małgorzata Guzik

Georges Boulon

2023

Journal of Non-Crystalline Solids

610

122306/1-122306/11

10.1016/j.jnoncrysol.2023.122306

Naukowa

Angielski

Artykuł

The effect of silica-alumina co-introduction on physical and spectroscopic properties of Nd³⁺-doped potassium phosphate glass was investigated. The Raman and X-ray photoelectron spectroscopy (XPS), physical parameters as well as spectroscopic characteristics were determined and analyzed in detail. Q² units gradually increase while Q¹ units have the opposite trend with the increase of SiO₂/Al₂O₃ ratios. Meanwhile the total number of [AlO₆] octahedrons and [AlO₄] tetrahedrons continue to decrease with [AlO₆]/ [AlO₆]+ [AlO₄] ratio keeping rise. As a result, the increase of more symmetrical bridge oxygen bonds and more ionic Si-O bonds lead to more centrosymmetric and stronger ionicity of Nd³⁺ ion coordination environment. The physical and spectroscopic properties of glasses benefit from silica-alumina co-introduction. When SiO₂/Al₂O₃ ratio was 1.8, the glass showed a high emission cross-section of 3.05 × 10⁻²⁰ cm², a high optical gain parameter of 10.8 × 10⁻²⁴ cm²s, together with wider gain bandwidth parameter of 7.61 × 10⁻²⁶ cm³.

Potassium phosphate glass, Silica-alumina co-introduction, Raman spectra, XPS, Spectroscopic properties

http://dx.doi.org/10.1016/j.jnoncrysol.2023.122306

http://www.elsevier.com