Synthesis and luminescent properties of Gd3Ga2Al3O12 phosphors doped with Eu3+ or Ce3

• Published in: Journal of the Korean Physical Society Vol. 69; no. 6; pp. 1110 - 1114
• Main Authors: Oh, M. J., Kim, H. J.
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Physical Society 01.09.2016; Springer Nature B.V; 한국물리학회
• Subjects: Europium; Mathematical and Computational Physics; Particle and Nuclear Physics; Physical properties; Physics; Physics and Astronomy; Theoretical; 물리학; Eu; Ce; Ga; Al; Gd; Phosphor; O
• ISSN: 0374-4884; 1976-8524
• DOI: 10.3938/jkps.69.1110

Eu 3+ -or Ce 3+ -doped gadolinium gallium aluminum garnet (GGAG), Gd 3 Ga 2 Al 3 O 12 , phosphors are fabricated using solid-state reactions with Gd 2 O 3 , Ga 2 O 3 , Al 2 O 3 , CeO 2 and Eu 2 O 3 powders. The Eu 3+ -or Ce 3+ -doped Gd 3 Ga 2 Al 3 O 12 phosphors are sintered at 1300 °C or 1600 °C for 5 hours by using an electric furnace under normal atmosphere. X-ray diffraction and field-emission scanning electron microscopy studies are carried out in order to analyze the physical properties of these materials, and their luminescence properties are also measured by using UV and X-ray sources. The Eu 3+ -or Ce 3+ -doped Gd 3 Ga 2 Al 3 O 12 phosphors show higher light yields in comparison to commercial phosphors such as Gd 2 O 2 S:Tb (gadox). This indicates that Gd 3 Ga 2 Al 3 O 12 :Eu 3+ phosphors are promising materials for use in X-ray imaging and dose monitoring at proton beamlines.