Abstract
Novel SrGd1.76Eu0.24O4 materials were synthesized by conventional high-temperature solid-state reaction method in air ambiance. The structural and luminescence properties of as-prepared phosphors were explored by XRD, FESEM, TEM, PL and TL techniques. The confirmation of orthorhombic phase formation was obtained by XRD studies. The agglomerated ginger-like morphology of as-synthesized SrGd1.76Eu0.24O4 samples was unfolded by FESEM and TEM studies. Upon 276 and 395 nm UV excitation, SrGd1.76Eu0.24O4 phosphors showed intense red emission. The TL glow curve of SrGd1.76Eu0.24O4 irradiated with γ-rays exhibits two well-resolved peaks at 393 K and 598 K having a shoulder at 537 K. Linearity in a wide dose range 500 Gy-3 kGy are observed in the as-formed SrGd1.76Eu0.24O4 samples. Intense red emission, linear dose response and high reproducibility of SrGd1.76Eu0.24O4 samples broadly indicated its suitability for display and TL dosimetry applications.
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