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チタンドープによって発光するアルミン酸カルシウムスズ蛍光体 -- 材料分析室利用研究成果、そのXXX(1) -- Calcium tin aluminate phosphors activated by Ti-ions -- Research works accomplished by using materials analysis facilities: XXX(1) -- 竹本, 稔 Takemoto, Minoru 蜂谷, 智幸 Hachiya, Tomoyuki Fluorescent materials Ti4+ Charge transfer Ceramic Crystal application/pdf In this study, we focused on the oxides with the composition of Ca2Sn2-xTixAl2O9, in which Ti4+ ions are introduced into the host material Ca2Sn2Al2O9, to develop rare earth-free fluorescent materials. The samples were successfully synthesized by a complex polymerization method. The samples showed blue emission at 476 nm under excitation at 243 nm. The emission intensity reached a maximum at x = 0.02. The excitation and emission spectra were recorded from room temperature to 573 K. As the temperature rises, the emission wavelength becomes shorter, while the excitation wavelength becomes longer, indicating that our fluorescent materials are sensitive to temperature. 神奈川工科大学 2020-03-01 jpn departmental bulletin paper VoR https://doi.org/10.34411/00032030 http://hdl.handle.net/10368/00032030 https://kait.repo.nii.ac.jp/records/12102 10.34411/00032030 AA12669200 21882878 神奈川工科大学研究報告.B,理工学編 44 51 54 https://kait.repo.nii.ac.jp/record/12102/files/kkb-044-008.pdf application/pdf 942.5 kB 2021-05-11