Low-temperature luminescence of LiB₃O₅: Ag glass excited by synchrotron radiation Available to Purchase

The paper presents the results of studies of photoluminescence (PL) of $Li B 3 O 5 : Ag$ glass at a temperature of 12.6 K under the influence of synchrotron radiation λ_exc = 45 nm. It was found that the obtained PL spectra consist of three bands λ_mon = 278, 336, and 379 nm. Studies of the excitation spectra by scanning with the registration of luminescent radiation at λ_mon = 280, 330, and 390 nm revealed four bands for each λ_mon. It is proposed that the main band at 278 nm in the excitation spectra is associated with centers based on Ag⁺ ions that occupy the Li⁺ sites in the glass structure, while the other two bands at 336 and 379 nm are associated with centers based on Ag₂⁺ and Ag₃⁺ conglomerates. B³⁺ – O^– centers based on structural defects in boron oxide complexes may be responsible for the weak 110 nm excitation band.