The optical properties of cadmium zinc phosphate glasses

The glass transition temperature and infrared absorption spectra of: (70−x)TeO2+15B2O3+15P2O5+xLi2O glasses

“…These bands attributed as due to the P-O-P harmonic bending, the P-O-P anti-symmetric, the P-O-P symmetric, the PO 3À 4 t3-normal tetrahedral ion and P@O stretching symmetric vibrational bonds, respectively. Also, IR investigations showed that the phosphate tetrahedral unit, PO 4 , dominate the structure of the glasses which contain metal oxides, e.g., CdO [3], V 2 O 5 [4], ZnO [5], Co 3 O 4 [1], MnO 2 [2] and TeO 2 -B 2 O 3 [6]. Anyhow, the increasing content of such oxides in the phosphate matrix can change the positions of the obtained absorption bands of different modes of vibrations, i.e., a shift to a higher wave number, indicating an increase in the number of tetrahedral surrounded transition metal cation.…”

Spectral properties of PbO–P2O5 glasses

“…For molybdenum phosphate glasses, the value of DE was greater than 0.16 eV [31]. For ternary phosphate glasses of the type CdOZnO-60 mol% P 2 O 5, the reported value of DE vary between 0.40 and 0.58 eV, and E changes from 3.65 to 4.95 eV depending on the glass composition [30] .On the other hand, DE was found to be 0.12-0.4 eV for WO 3 -CaO-TeO 2 glasses [32].…”

Radiation induced color centers in 50PbO–50P2O5 glass

“…For molybdenum phosphate glasses, [17] the value of DE was greater than 0.16 eV, whereas for ternary phosphate systems of the type CdO-ZnO-60 mol% P 2 O 5 [18], the reported value of DE vary between 0.40 and 0.58 eV, and E changes from 3.65 to 4.95 eV depending on the glass composition. On the other hand, DE was found to be 0.12-0.4 eV for WO 3 -CaO-TeO 2 glasses [19].…”