The effect of substrate thickness on the fluorescence of single-doped Cu+ glass prepared by ion exchange

The single-doped Cu+ glass obtained by ion exchange preparation process was studied. The exchange depth of copper ions in the glass reached 50 μm–150 μm (prepared at 370 °C–530 °C, 16 h). XPS and Raman testing showed that the glass network polymerization degree of the thin glass (thickness 0.2 mm) was lower than that of the thick glass (thickness 2 mm), and the optical alkalinity of the thin glass surface was lower than that of the thick glass. The proportion of monovalent Cu ions coordinated in octahedra in the thin glass sheet was higher than that in the thick glass sheet. PL studies had shown that under the condition of ion exchange at 370 °C for 16 h, the fluorescence intensity and fluorescence quantum efficiency of thin glass samples were higher than those of thick glass samples. The fluorescence quantum efficiency of thin glass samples reaches 56.88%, and they also have good thermal stability.