Fabrication and Characterization of Gd2O2SO4:Tb3+ Phosphors by Sol-gel Method


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Aritman I., Yıldırım S., Kisa A., Guleryuz L. F., Yurddaşkal M., Dikici T., ...Daha Fazla

6th Congress and Exhibition on International Advances in Applied Physics and Materials Science (APMAS), İstanbul, Türkiye, 1 - 03 Haziran 2016, cilt.1809 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1809
  • Doi Numarası: 10.1063/1.4975418
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Anahtar Kelimeler: Radiography imaging, GOS phosphors, Sol-gel, NANO-PHOSPHORS, LUMINESCENCE, DETECTORS, GD2O3, CE
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

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.