i-manager Publications

Thermal Stability of High-Pressure Phase of SrO:Ce Phosphor

Keiji Komatsu*, Atsushi Nakamura**, Hidetoshi Saitoh***

*,*** Department of Materials Science and Bioengineering, Nagaoka University of Technology, Niigata, Japan.

** Chubu Chelest Co., Ltd. Japan.

Periodicity:October - December'2024
DOI : https://doi.org/10.26634/jms.12.3.21696

Abstract

The thermal stability of the high-pressure phase 8-coordination of oxygen in Cerium-doped Strontium oxide (SrO:Ce) phosphors was investigated in this study. Due to the tendency of Strontium oxides 6-coordination of oxygen to react with moisture, high thermal and chemical stability is required for commercial applications. Eight-coordinated SrO:Ce phosphors were synthesized by sintering in a reducing atmosphere, and their thermal stability was examined using X-ray diffraction (XRD), photoluminescence (PL), cathodoluminescence (CL), and X-ray photoelectron spectroscopy (XPS). The results show that the eight-coordinated SrO:Ce phosphors exhibit high thermal stability, particularly after annealing. This is expected to contribute to the development of new fluorescent materials with Ce3+ as the luminescent center.

Keywords

Thermal Stability, Fluorescent Materials, Phosphor Synthesis, High-Pressure Phase, Photoluminescence (PL), X- ray Diffraction (XRD).

How to Cite this Article?

Komatsu, K., Nakamura, A., and Saitoh, H. (2024). Thermal Stability of High-Pressure Phase of SrO:Ce Phosphor. i-manager’s Journal on Material Science, 12(3), 1-9. https://doi.org/10.26634/jms.12.3.21696

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