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All Journal EINSTEIN (E-JOURNAL) Journal of The Physical Society of Indonesia
Simanullang, Elyzabeth
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Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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PHOTOLUMINESCENCE PROPERTIES OF TB3+ DOPED ON PHOSPHATE GLASS MEDIUM BY ADDITION OF FLUORIDE COMPOUNDS Simanullang, Elyzabeth; Rajagukguk, Juniastel; Hutahaean, Juniar; Sarumaha, Chayani Setiades
EINSTEIN (e-Journal) Vol. 12 No. 3 (2024): EINSTEIN (e-Journal)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ein.v12i3.54202

Abstract

Research has been conducted on the effect of the addition of fluoride compounds on the photoluminescence properties of Tb3+ doped on phosphate glass has been found. with the composition of glass samples are 69 P2O5 - 20 LiO2 - 10 AlF3 - 1Tb2O3 (P-Tb1), 59 P2O5 - 20 LiO2 - 10 AlF3 - 10 NaF - 1 Tb2O3 (P-Tb2) and 49 P2O5 - 20 LiO2 - 10 AlF3 - 10 NaF -10KF - 1 Tb2O3 (P-Tb3). All chemical compounds are in powder form with a total mass of 15 grams using the melt-qunching technique at 11000C. To determine the quality of the material, measurements and calculations were made of physical properties including molar mass, density, molar volume, refractive index, Tb3+ ion concentration, Polaron radius, molar refractivity, reflection loss and dielectric constant. Characterizations carried out include FTIR, UV-VIS-NIR Spectrophotometer, Abbe Refractometer, Spectrofluorophotometer. To study the physical properties, the optical properties were examined through their absorption and luminescence spectra. The luminescence spectrum is known by photoluminescence. Characteristic luminescence bands corresponding to electronic transitions of terbium ions were detected under two direct excitations of Tb3+ ions. After 377 nm excitation, the glass sample obtained terbium 5D4→ 7F5 transition at 544 nm indicating green laser. The application of green laser has been investigated with CIE coordinate diagram.
The Effect of Quartz Sand on Structural and Optical Properties of Dy3+ Doped P2O5-CaO-BaO-Gd2O3 Glasses Panggabean, Jonny H.; Br Sembiring, Novita Madalena; Simanullang, Elyzabeth; Rajagukguk, Juniastel; Sarumaha, C.S.; Kaewkhao, J.
Journal of the Physical Society of Indonesia Vol. 1 No. 2 (2025): October 2025
Publisher : The Physical Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35895/jpsi.1.2.136-144.2025

Abstract

This study investigates the influence of quartz sand incorporation on the structural and optical properties of Dy³⁺ doped P₂O₅–CaO–BaO–Gd₂O₃ phosphate glasses. The glass samples were synthesized using the conventional melt-quenching technique, with varying concentrations of quartz sand as a partial substitution of P₂O₅. Structural characterization was carried out using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy, which confirmed the formation of an amorphous glass network and the presence of phosphate, silicate, and modifier-related vibrational bands. The optical absorption spectra, recorded via UV–Vis spectroscopy, revealed characteristic f–f transitions of Dy³⁺ ions, indicating their successful incorporation into the glass matrix. The intensity ratio of yellow to blue emission was found to be influenced by the quartz sand content, suggesting a significant role of SiO₂ in modifying the local environment around Dy³⁺ ions. These results highlight the potential of quartz-sand-modified phosphate glasses as promising candidates for photonic and luminescent device applications.
Co-Authors Br Sembiring, Novita Madalena J. Kaewkhao, J. Jonny H. Panggabean Juniar Hutahaean Juniastel Rajagukguk, Juniastel Sarumaha, C.S. Sarumaha, Chayani Setiades