Structural and optical studies of CaSO4:Ce3+ nanorods for display and dosimetric applications

  • Yashaswini
  • C. Pandurangappa
  • N. DhananjayaEmail author
Regular Article


The CaSO4:Ce3+ (1-9mol%) nanorods were successfully synthesized by co-precipitation method. Preliminary crystallographic, structural and optical studies of the prepared nanorods were done using powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED), Fourier transform infrared spectroscopy (FTIR), UV-visible absorption spectroscopy, photoluminescence (PL) and thermoluminescence (TL). The CaSO4:Ce3+ has a single phase hexagonal lattice structure with space group P3121(152). The average crystallite size was calculated using Scherrer’s formula and found to be in the range 41-62 nm which is in good agreement with TEM results. The SEM micrographs shows rod like structure with various sizes. Upon 350 nm excitation, the CaSO4:Ce3+ nanophosphor showed emission at 390, 405 and 430 nm, which is characteristic luminescence of \(5{\rm d} \rightarrow 4{\rm f}\)(2F5/2, 2F7/2) transitions of the Ce3+ ions. The chromaticity co-ordinates and correlated color temperature of all the phosphors were well located in blue region. TL glow curve response of the prepared nanorods with 500 Gy \(\gamma\)-irradiated was studied. TL glow curve contains glow peak at 188 °C. Kinetic parameters was estimated for deconvoluted TL glow peaks and studied in detail.


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Copyright information

© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of PhysicsB.M.S. Institute of Technology and ManagementBangaloreIndia
  2. 2.Department of PhysicsR.N.S Institute of TechnologyBangaloreIndia

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