Electronic structure and optical properties of the lanthanide activated RE3(Al1−xGax)5O12 (RE=Gd, Y, Lu) garnet compounds
作者： Pieter Dorenbos
DOI: 10.1016/J.JLUMIN.2012.08.028
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摘要: Abstract The spectroscopy of the lanthanide dopants in RE3(Al1−xGax)5O12 (RE=Gd, Y, Lu and x=0, 0.2, 0.4, 0.6, 0.8, 1) family garnet compounds is reviewed providing information on redshift, centroid shift, charge transfer energies, host exciton creation energies. Clear systematic trends with changing composition are identified which enables prediction properties where not yet available or incomplete. data used as input to recently developed chemical shift model then generates vacuum referred binding energy electrons 4f-states 5d-states all trivalent divalent lanthanides family. obtained energies excellent agreement observed like thermal quenching efficiency 5d–4f emission, electron trapping lanthanides, photoconductivity thermoluminescence.
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