Spectroscopic properties of chromium/antimony co-doped alkali-alumina-borate glass-ceramics

Abstract Alkali-alumina-borate glass-ceramics co-doped with Cr and Sb ions are synthesized by the melt quenching technique. LiAl7B4O17 nanocrystals are formed in the glass host during the two-stage heat treatment at the crystallization temperature. For the samples of the initial and heat-treated glass with high antimony oxide content (>0.05 wt%), absorption spectra contain two absorption bands that are shifted to the short-wave region after the heat treatment. Initial and heat-treated glass with low antimony oxide content (