Photoluminescence of implantation-induced defects in SiO2:Pb+ glasses

The luminescence of quartz glass with implanted Pb⁺ ions is investigated by time-resolved photoluminescence spectroscopy under synchrotron excitation. It is established that the glass layer modified with ions represents a microheterogeneous medium with a variable content of implanted ions predominantly in the form of Pb²⁺. Three different types of emission centers are detected that are created by radiation-induced defects of the SiO₂ matrix and localized electronic states of the amorphous lead-silicate phase.