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Effect of B 2 O 3 addition on structure and properties of Yb 3+ /Al 3+ /B 3+ ‐co‐doped silica glasses
Author(s) -
Guo Mengting,
Shao Chongyun,
Zhang Yang,
Yu Jingbo,
Jiao Yan,
Guzik Malgorzata,
Boulon Georges,
Ren Jinjun,
Hu Lili
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17155
Subject(s) - raman spectroscopy , crystal structure , doping , materials science , crystallography , analytical chemistry (journal) , chemistry , physics , optics , optoelectronics , chromatography
The homogeneous Yb 3+ /Al 3+ /B 3+ ‐co‐doped silica glasses were prepared via a sol‐gel method. The impact of B 2 O 3 addition on the physical and optical properties and network structure was systematically studied. The network structure was investigated by the Fourier Transform Infrared (FT‐IR), Raman spectra, and Solid State Nuclear Magnetic Resonance (SSNMR). Herein, B 2 O 3 addition can continuously decrease the refractive index and density. When B 2 O 3 is lower than 2 mol%, B 2 O 3 addition can obviously decrease the scalar crystal field parameters, Yb 3+ asymmetry degree, Yb 3+ cross‐sections, due to the generation of Yb–O–B bonds at the cost of partial Yb–O–Al/Si ones. When B 2 O 3 is more than 2 mol%, FT‐IR, Raman spectra, and SSNMR results indicate that further increased B atoms prefer to connect with Si and Al rather than Yb. Consequently, the above parameters are basically unchanged. Based on the results, an intuitive model of structure and properties evolution during the substitution of SiO 2 by B 2 O 3 has been established.