Li-Ta-Ti-O:Mn4+蛍光体の発光強度向上のための加圧炉による酸素分圧の検討

白川 典輝; 中野 裕美

doi:10.4164/sptj.60.402

論文

Li-Ta-Ti-O:Mn⁴⁺蛍光体の発光強度向上のための加圧炉による酸素分圧の検討

白川典輝, 中野裕美

著者情報

キーワード: Solid state reaction, Photoluminescence property, Crystal structure, Phosphor, XANES

ジャーナルフリー

2023 年 60 巻 7 号 p. 402-406

DOI https://doi.org/10.4164/sptj.60.402

詳細

抄録

The photoluminescence (PL) intensities of Li-Ta-Ti-O:Mn⁴⁺ red phosphors were successfully improved under various oxygen partial pressures in an air-pressure control atmosphere furnace (APF). The Mn phosphors were synthesized using an APF and a conventional electric furnace (EF) with the composition formula Li_1.33Ta_0.67Ti_0.33O₃ as the host material. The effects of oxygen partial pressure on the Mn⁴⁺ ratio and crystal structure for the PL intensity were investigated. As a result, the PL intensity was enhanced under high oxygen partial pressure, showing about 2.6 times higher than the phosphor synthesized by EF.

責任著者(Corresponding author)

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