The effects of delayed annealing on the luminescent activity of heavy metal cadmium zinc phosphate glasses activated by: Er and Tb ions.

The luminescent spectra of the REO-doped PO-CdO-ZnO glasses (RE = Er, and Tb) were investigated to separate the effects of two studied rare-earth elements and the annealing regime on the emission performance of the prepared glasses. The glasses undergo a series of collective measurements including UV-visible absorption, luminescence, thermal expansion, XRD, TEM, and FTIR. The optical UV-visible spectra of the two doped glasses reveal a UV band due to undoped glass beside and extra extended 11 peaks with the Er ions with high distinct features while the Tb ions samples exhibit peaks within the visible region.

Crystallization effects on the photoluminescence efficiency of SrO-BO glass activated by W, Eu, Dy or Pr ions.

Binary strontium borate host glass together with samples doped with 0.25 %WO and one of the rare - earth ions (0.125% Eu, Dy or Pr) were prepared by conventional melting - annealing technique.

Optical, structural and thermal properties of sodium metaphosphate glasses containing BiO with interactions of gamma rays.

Sodium metaphosphate glasses with successive increasing added BiO contents (5-40%) were prepared to improve their chemical stability and increase their optical and thermal properties through the additional building BiO and BiO units. The optical spectrum of the base metaphosphate glass reveals strong UV absorption due to the presence of trace iron (Fe) ions present as impurities. Glasses containing additional 5, 7.

Effect of 3d-transition metal doping on the shielding behavior of barium borate glasses: a spectroscopic study.

UV-visible and FT infrared spectra were measured for prepared samples before and after gamma irradiation. Base undoped barium borate glass of the basic composition (BaO 40%-B2O3 60mol.%) reveals strong charge transfer UV absorption bands which are related to unavoidable trace iron impurities (Fe(3+)) within the chemical raw materials.

Characterization by combined optical and FT infrared spectra of 3d-transition metal ions doped-bismuth silicate glasses and effects of gamma irradiation.

Optical and infrared absorption spectral measurements were carried out for binary bismuth silicate glass and other derived prepared samples with the same composition and containing additional 0.2% of one of 3d transition metal oxides. The same combined spectroscopic properties were also measured after subjecting the prepared glasses to a gamma dose of 8 Mrad.