PRODUCTION AND DEVELOPMENT OF MONOCLINIC YTTRIUM TANTALATE (M '-YTaO4) X-RAY PHOSPHOR VIA SOL-GEL TECHNIQUE

Yıldırım S., Demirci S., Mermer O., Toparli M., Arıcan Alıcıkuş L. Z., Akman F., ...Daha Fazla

International Conference on Production Research - Regional Conference Africa, Europe and the Middle East (ICPR-AEM) / 3rd International Conference on Quality and Innovation in Engineering and Management (QIEM), Cluj-Napoca, Romanya, 1 - 05 Temmuz 2014, ss.454-456 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Cluj-Napoca
  • Basıldığı Ülke: Romanya
  • Sayfa Sayıları: ss.454-456
  • Anahtar Kelimeler: Radio luminescence, Thin film, Phosphors, Sol-Gel, YTaO4, UP-CONVERSION LUMINESCENCE, FILMS
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

Monoclinic yttrium tantalate (M'-YTaO4) are efficient X-ray phosphor used in X-ray medical imaging, in which these phosphor are used in films/screen cassettes, and also in electronic detector systems such as computed radiography, computed tomography and fluoroscopy. Performances of these phosphor are related to composition, crystalline structure, surface properties and luminescence properties of films. In this study, M'-YTaO4 films were synthesized by five steps sol-gel spin coating route on single crystal silicon substrate. And then these films were dried at 120 degrees C and were sintered at 1200 degrees C for 4 hours and slowly cooled to room temperature. The obtained films were characterized by means of X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and differential thermal analysis (DTA). After sintering, monoclinic M'-YTaO4 phase was obtained.