Luminescent phosphors, based on rare earth substituted oxyfluorides in the A(1)3−x A(2)xMO4F family with A(1)/A(2)=Sr, Ca, Ba and M=Al, Ga |
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| Authors: | Sangmoon Park Thomas Vogt |
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| Affiliation: | a Department of Engineering in Energy and Applied Chemistry, Silla University, Busan 617-736, Republic of Korea
b NanoCenter & Department of Chemistry and Biochemistry, University of South Carolina, Columbia 29208, SC, USA |
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| Abstract: | A new family of UV-activated phosphors made by substituting rare-earth activators such as trivalent Eu, Tb, Tm and Er into A(1)3−xA(2)xMO4F host lattices (A(1)/A(2)=Sr, Ca, Ba; M=Al, Ga) are introduced and their activation and emission spectra as well as their CIE values reported. The Tm-substituted system can be activated using light with a wavelength of 360 nm. Relative intensities of a family of Tb-substituted green phosphors activated at 254 nm and with emissions centered near 548 nm are discussed. |
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| Keywords: | Photoluminecence Sr3AlO4F host lattice Rare-earth ions (Eu, Tb, Er, Tm) |
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