The Effect of Na2O/B2O3 Composition Ratio on the Structure and Properties of Cu+ Doped Luminescent Glass

• Published in: Journal of Wuhan University of Technology. Materials science edition Vol. 39; no. 6; pp. 1379 - 1390
• Main Authors: Li, Bohan, Feng, Jinyang, Feng, Xiaoping, Zhao, Xiujian, Wu, Donghua, Ma, Xiao
• Format: Journal Article
• Language: English
• Published: Wuhan Wuhan University of Technology 01.12.2024; Springer Nature B.V; State Key Laboratory of Silicate Materials for Architectures,Wuhan University of Technology,Wuhan 430070,China%Yangtze Optical Fibers and Cable Joint Stock Limited Company,Wuhan 430074,China
• Subjects: Absorption spectra; Advanced Materials; Boron oxides; Borosilicate glass; Chemistry and Materials Science; Coordination; Copper; Infrared spectroscopy; Luminescence; Materials Science; Optical properties; Raman spectroscopy; Spectrum analysis; Thermal stability; Thermal transformations; X ray photoelectron spectroscopy; luminescence; glass structure; value; Cu ion valence; R value
• ISSN: 1000-2413; 1993-0437
• DOI: 10.1007/s11595-024-3007-2

Cu + -doped alkali borosilicate glasses with different Na 2 O contents were prepared by the melting method, and the effects of different R values ( R =Na 2 O/B 2 O 3 ) on the structure, ion presence state and luminescence properties of Cu + -doped alkali borosilicate glasses were investigated. The analysis by FT-IR and Raman spectroscopy shows that, with the increase of R value of the glass, the [BO 3 ] in the structure of Cu + -doped alkali borosilicate glass transforms into [BO 4 ] and the number of non-bridging oxygen in the glass network appears to be slightly increased. The absorption spectra and EPR analysis reveal that the Cu + content in the glass gradually decreases and the Cu 2+ content gradually increases as the R value of the glass increases. XPS and PL tests further indicate that the transformation of the octahedral coordination structure of Cu + to the octahedral coordination structure of Cu 2+ and the cubic coordination structure of Cu + occurs in the glass as the R value of the glass increases. This transformation can effectively reduce the concentration quenching phenomenon of Cu + and improve the fluorescence luminescence intensity of the glass samples. Meanwhile, the samples were found to have luminescence tunability as well as good thermal stability.