Luminescence properties of cerium doped iron calcium boroaluminate glass

• Main Authors: Roslan, Syaridatul Akmar, Arifin, Ramli, Ghoshal, Sib Krishna
• Format: Conference or Workshop Item
• Published: 2017
• Subjects: QC Physics
• Online Access: http://eprints.utm.my/id/eprint/97349/; http://dx.doi.org/10.4028/www.scientific.net/SSP.268.72
• Institution: Universiti Teknologi Malaysia

Borate glass system of composition (100-x)B2O3-15Al2O3-20CaO-0.4Fe2O3-xCeO2 with x = 0, 0.25, 0.50, 0.75, and 1.0 mol% were prepared using conventional melt-quenching method. Optical measurements were carried out at room temperature to determine the Cerium (Ce3+) ions concentration dependent absorption and luminescence emission properties of such glass system. Optical energy band gap of the glass system were evaluated as a function of Ce3+ ions content. Indirect band gap energy was found to be lower than the direct band gap energy. Urbach energy was ranged between 0.12-0.17 eV. An increased broad absorption is observed in the UV region with increasing Ce3+ ions concentration. The emission spectra of the glass system recorded with 380 nm excitation wavelength revealed prominent cyan-green emission.