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Luminescence Of Lanthanide Ions In Octahedral Coordinations With Comparison To The Centroid Shift And Host Lattice Exciton Energy, Sam J. Camardello
Luminescence Of Lanthanide Ions In Octahedral Coordinations With Comparison To The Centroid Shift And Host Lattice Exciton Energy, Sam J. Camardello
Legacy Theses & Dissertations (2009 - 2024)
In this dissertation, we have studied the luminescence of the lanthanide ions (Ce3+, Eu2+, Eu3+, Tb3+, and Pr3+), specifically in the highly symmetric octahedral coordination. This high symmetry coordination readily permits the optical properties of the luminescent ions to be determined spectroscopically. Relevant optical parameters such as the Stokes Shift (∆S), red shift (D(2+, 3+, A), crystal field splitting (Ɛcfs), and centroid sift (Ɛc), along with the excitation and emission spectra, are presented. Three different crystal structures were studied, namely, M2+Al2B2O7 (M2+ = Ca, Sr, Ba) doped with Eu2+ and Ce3+, KBaLn3+(BO3)2 (M3+ = all lanthanides, Y, Sc) doped with …