Fabrication and characterization of Gd2O2SO4:Tb3+ phosphors by sol-gel method
Conference paper > Full Text · 2016
Authors: İdil GÜNDEBAHAR, SERDAR YILDIRIM, AYTAÇ KISA, LÜTFİYE FERAY GÜLERYÜZ, METİN YURDDAŞKAL, TUNCAY DİKİCİ, ERDAL ÇELİK
AIP Conference Proceedings, Türkiye, İstanbul, International, Verbal, Full Text, 2016-2016, Scopus, vol 1809, pp 020003-020003
DOI: 10.1063/1.4975418
Summary
The objective of the innovative approaches of the scintillation materials to be used in the digital portal imaging systems in the radiotherapy applications is to research the GOS material production that has been activated with the rare earth elements (RE), to produce the scintillation detectors that have a rapid imaging process with a lesser radiation and higher image quality from these materials and to apply the radiographic imaging systems. The GOS: Tb3+ showed high emission peak and high x-ray absorption properties which have been determined for application to mammography and dental radiography. In this study, Gd2O2SO4:Tb3+ phosphors were fabricated by the sol-gel method that is a unique technique and not previously applied. Besides, the structural characterization of GOS: Tb3+ has been investigated. The strongest emission peak located at 549 nm under 312 nm UV light excitation was appeared on the GOS: Tb3+ phosphor particles. The characterization processing optimized by using FTIR, DTA-TG, XRD, XPS, SEM and the luminescence spectroscopy.