Structural and luminescence properties of antimony, lead, bismuth zinc borophosphate glasses doped iron and titanium

Abstract

Three series of antimony (Sb), lead (Pb) and bismuth (Bi) zinc borophosphate glass were prepared at composition xSb2O3-(50-x)P2O5-20ZnO-30B2O3:2Fe2O3, xPbO-(50-x)ZnO-10B2O3-40P2O5 and xB2O3-(60-x)P2O5-10Bi2O3-30ZnO with 0= x =50 mol%. All glasses were successfully fabricated by melt quenching method. The X-Ray Diffraction (XRD) confirmed the amorphous nature of glass samples. The Energy Dispersive X-Ray (EDX) was used for elemental analysis in the sample. The EDX spectrum showed the existence of antimony, lead, bismuth and zinc in glass samples. The structural vibrations were measured by the Fourier Transform Infrared (FTIR) spectroscopy. The analysis indicated the borophosphate glass system is dominated by the linkages of P-O, B-O-B, P-O-P, while the recorded stretching bond by the linkages of B-O, PO2, BO3 and BO4. The glasses were doped by the iron (Fe) and titanium (Ti) for luminescence study. The Photoluminescence (PL) spectra showed the Fe emission at 402 nm, 464 nm and 540 nm are not affected by composition variation in antimony zinc borophosphate system. The Fe showed the same emission as the Fe was doped in lead zinc borophosphate glass. However, the 540 nm emission diminished when Fe was doped in bismuth zinc borophosphate glass. The Ultraviolet-Visible (UV-Vis) absorption spectra showed that the Fe absorbed at wavelength 277 nm to 430 nm as it doped to antimony zinc borophosphate system. As the Sb content increased up to 20 mol%, the absorption range extended to 462 nm. Fe doped lead zinc borophosphate glass was only absorbed at wavelength 200 nm to 385 nm. This range is reduced to 350 nm when Fe doped to bismuth zinc borophosphate glass. Ti doped lead zinc borophosphate glass absorbed at 200 nm to 335 nm while only absorbed at 200 nm to 314 nm when Ti was doped to bismuth zinc borophosphate glass.