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http://dx.doi.org/10.7742/jksr.2021.15.3.391

Temperature Dependent Optical Performance of the NaSr(PO3)3:Eu2+ Blue Phosphors  

Yoon, Chang yong (Department of Nuclear Medicine, Dongnam Institute of Radiological & Medical Sciences Cancer center)
Lee, Sang ho (Department of Nuclear Medicine, Dongnam Institute of Radiological & Medical Sciences Cancer center)
Publication Information
Journal of the Korean Society of Radiology / v.15, no.3, 2021 , pp. 391-399 More about this Journal
Abstract
Eu2+ doped polyphosphate NaSr(PO3)3 blue-emitting phosphors were synthesized by the conventional solid state method in a reductive atmosphere. The phase formation of NaSr(PO3)3 phosphors were characterized by using the X-ray powder diffraction (XRD) measurement. The photoluminescence emission and excitation spectra of the NaSr(PO3)3:Eu2+ phosphor, and decay curves were measured. Under the near-UV excitation, the phosphor exhibits a band emission around 420 nm assigned to the 4f65d→f7(8S7/2) transition of Eu2+. The temperature dependent emission spectra and decay curves were measured to elevate the thermal properties of the Eu2+ doped phosphors. The as-prepared NaSr(PO3)3:Eu2+ phosphors show a strong temperature dependent performance, which can serve as a promising temperature sensor.
Keywords
$NaSr(PO_3)_3$; $Eu^{2+}$; Temperature dependent;
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