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Synthesis and characterization of physical properties of Gd2O2S:Pr3+ semi-nanoflower phosphor

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Abstract

Pure gadolinium oxysulfide phosphor (Gd2O2S) and trivalent praseodymium-doped gadolinium oxysulfide phosphor (Gd2O2S:Pr3+) scintillators with semi-nanoflower crystalline structures were successfully synthesized through a precipitation method and subsequent calcination treatment as a converter for X-ray imaging detectors. The characterization such as the crystal structures and nanostructure of Gd2O2S:Pr3+ scintillator measured by XRD and FeE-SEM experiment. The optical properties of Gd2O2S:Pr3+ scintillator were studied. Luminescence spectra of Gd2O2S:Pr3+ under 320 nm UV excitation show a green emission at near 511 nm corresponding to the 3P0–3H4 of Pr ions. After scintillation properties of synthesized Gd2O2S:Pr3+ scintillator investigated, Gd2O2S:Pr3+ scintillating film fabricated on a glass substrate by a sedimentation method. X-ray imaging of the fabricated scintillators confirmed that the Gd2O2S:Pr3+ scintillator could be used for radiography applications in which good spatial resolution is needed.

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Authors and Affiliations

  1. Department of Nuclear Engineering, Faculty of Advance Sciences and Technologies, University of Isfahan, Isfahan, 81746-73441, Iran

    A. Bagheri, Kh. Rezaee Ebrahim Saraee & H. R. Shakur

  2. Agriculture, Medical and Industrial Research School, Nuclear Science and Technology Research Institute, Karaj, Iran

    H. Zamani Zeinali

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  1. A. Bagheri
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  2. Kh. Rezaee Ebrahim Saraee
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  3. H. R. Shakur
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Correspondence to Kh. Rezaee Ebrahim Saraee.

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Bagheri, A., Rezaee Ebrahim Saraee, K., Shakur, H.R. et al. Synthesis and characterization of physical properties of Gd2O2S:Pr3+ semi-nanoflower phosphor. Appl. Phys. A 122, 553 (2016). https://doi.org/10.1007/s00339-016-0058-z

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  • DOI: https://doi.org/10.1007/s00339-016-0058-z

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