A series of glasses with composition of xPbO-(50-x)ZnO-yB2O3-(50-y)P2O5 with 0 x 50 mol% and 10 y 20 mol% were prepared by melt quenching technique, with 30 minutes pre-heating and 10 minutes for melting. The structural properties of prepared samples were studied using Fourier Transform-Infrared spectroscopy. The glasses were mainly based on PO2, BOP and BO3 unit. In order to obtain luminescence properties, another series of sample at composition 20PbO-30ZnO-10B2O3-40P2O5 doped with Fe2+, Ti2+, Y2+ and Nd2+ were prepared. These samples were investigated using Photoluminescence Spectroscopy with different excitation wavelength to compare results. Results showed that with the presence of rare earth and transition metal ions as activator in lead zinc borophosphate glass system give rise to luminescence of visible light.
Structural and luminescence study of antimony-zinc borophosphate glass doped with iron AIP Conf. Proc. 1528, 321 (2013); 10.1063/1.4803617 Luminescence properties of rare earth and transition metal ions doped potassium lead borophosphate glass AIP Conf. Proc. 1528, 310 (2013); 10.1063/1.4803615 Structural study of cadmium lead borophosphate glass AIP Conf. Proc. 1528, 296 (2013); 10.1063/1.4803612 Studies of concentration dependences in the luminescence of Ti-doped Al2O3Abstract. A series of lead manganese borophophate glass samples were prepared and studied to determine the structural and luminescence properties using Fourier Transform Infrared Spectroscopy (FT-IR) and Photoluminescence Spectrophotometer. The glass samples with composition of 20PbO-xMnO 2 -30B 2 O 3 -(50-x)P 2 O 5 -2TiO 2 where 0 x 20 were prepared using melt-quenching technique in air atmosphere. The samples containing different MnO 2 and P 2 O 5 content were both subjected to FT-IR testing to show the contrary effects of the network modifier. Infrared absorption spectrum shows vibrational bands of BO 4 and PO 3 structure within the borophosphate network structure, with the dominant BO units increasing with lower P 2 O 5 mol%. All glassy samples exhibit photoluminescence emission in the visible range. Manganese contained samples shows violet emissions while those without show violet-blue emission when excited by UV.
A series of potassium lead borophosphate glass doped with rare earth and transition metal ions were fabricated using melt-quenching method without annealing process. With the composition of glass 0.15K 2 O -0.15PbO -0.35B 2 O 3 -0.5P 2 O 5 as host doped with 0.01 mole % of neodymium oxide, iron oxide, yttrium oxide, and titanium oxide as activator and different composition were used to investigate the luminescence effect by using Photoluminescence Spectroscopy and UV-Vis (Ultraviolet-Visible) spectrophotometer. By exciting the samples at different wavelength (200-900 nm), the excitation and emission profile were obtained and analyzed to study the energy transfer process. By referring to the spectra obtained, selected samples were also codoped among each other to obtain desired luminescence properties. UVVisible spectroscopy results revealed the absorption and transmission wavelength of samples for targeted application as a selected band filter. Physical properties such as chemical stability and color of the samples were also recorded to correlate with PL and UV-Vis result. Certain rare earth activated samples displayed slight coloring under the visible wavelength especially Nd 2+ ions doped samples displayed slight purplish.
Two series of cadmium and lead oxide modified borophosphate glass were fabricated using the melt quenching technique. The glass samples composition werexPbO:(50-x)CdO:10B 2 O 3 :40P 2 O 5 and xPbO:(50-x)CdO:20B 2 O 3 :30P 2 O 5 . As different combinations of modifier oxides were added to the host system, changes in structural properties were expected to be observed and compared. For the study of structural properties, Fourier-Transform Infrared (FT-IR) spectroscopy and Raman spectroscopy were used. FT-IR and Raman spectroscopy were expected to produce structural information regarding the network forming borate and phosphate. Within the wavelength range of 400-2000 cm -1 , multiple types of borate and phosphate stretching and bending groups were detected confirming the presence of borate and phosphate as glass forming host. Compositions and physical characteristics of all prepared samples were recorded to correlate with the both FT-IR and Raman spectroscopy spectra
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.