Infrared absorption spectra of transition metals-doped soda lime silica glasses

Infrared (IR) absorption spectra of some prepared undoped and transition metals-doped soda–lime–silicate glasses have been studied in the region of 400–4000 cm−1. IR spectra were analyzed to determine and differentiate the various vibrational modes by applying a deconvolution method to the IR spectra. Although the first sight reveals close similarity between the different transition metal- (TM) doped samples; careful inspection indicates some minor differences depending on the type of TM ions. These observed data are correlated with similar energy of the 3d orbitals of TM atoms in the neutral state and when the atoms are ionized, the 3d orbitals becomes more stable than the 4 s orbitals.