Visible luminescence of lanthanide ions in Ca3Sc2Si3O12 and Ca3Y2Si3O12
来源期刊：Journal of Rare Earths2009年第4期
论文作者：Fabio Piccinelli Adolfo Speghini Gino Mariotto Laura Bovo Marco Bettinelli
文章页码：555 - 559
摘 要：The crystalline materials Ca3Sc2Si3O12 and Ca3Y2Si3O12 were characterized by different crystal structures, as the former is a cubic garnet, while the latter is an orthorhombic compound. We investigated the optical spectroscopy of these materials doped with several trivalent lanthanide ions and compared the results for the two hosts. Polycrystalline samples were prepared by solid state reaction, both undoped and doped with the trivalent lanthanide ions Eu3+, Tb3+ and Sm3+. Emission, excitation and Raman spectra of these materials were measured at temperatures ranging from 300 to 10 K. The optical spectra were assigned and discussed, and the effects of the crystal structure of the host on the spectroscopic behaviour were addressed. The technological potential of these compounds in the field of optical materials and devices was discussed.
Fabio Piccinelli1，Adolfo Speghini2，Gino Mariotto3，Laura Bovo1,4，Marco Bettinelli1
1. Dipartimento Scientifico e Tecnologico, University Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy2. DiSTeMeV, University Verona, and INSTM, UdR Verona, Via della Pieve 70, 37029 S.Floriano (VR), Italy3. Dipartimento di Informatica, University Verona, Strada Le Grazie 15, 37134 Verona, Italy
摘 要：The crystalline materials Ca3Sc2Si3O12 and Ca3Y2Si3O12 were characterized by different crystal structures, as the former is a cubic garnet, while the latter is an orthorhombic compound. We investigated the optical spectroscopy of these materials doped with several trivalent lanthanide ions and compared the results for the two hosts. Polycrystalline samples were prepared by solid state reaction, both undoped and doped with the trivalent lanthanide ions Eu3+, Tb3+ and Sm3+. Emission, excitation and Raman spectra of these materials were measured at temperatures ranging from 300 to 10 K. The optical spectra were assigned and discussed, and the effects of the crystal structure of the host on the spectroscopic behaviour were addressed. The technological potential of these compounds in the field of optical materials and devices was discussed.
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