Lanthanide level location and related thermoluminescence phenomena

The location of the ground state energy of a lanthanide ion relative to the valence or conduction band of a host crystal determines whether that lanthanide is a potential electron or a potential hole trap. In this contribution the methods to determine the lanthanide ground state energy are briefly r...

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Bibliographic Details
Published in:Radiation measurements 2008-02, Vol.43 (2), p.139-145
Main Authors: Dorenbos, P., Bos, A.J.J.
Format: Article
Language:English
Subjects:
Charge carrier trapping
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochronology
Isotope geochemistry. Geochronology
Lanthanides
Thermo-luminescence
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Summary:The location of the ground state energy of a lanthanide ion relative to the valence or conduction band of a host crystal determines whether that lanthanide is a potential electron or a potential hole trap. In this contribution the methods to determine the lanthanide ground state energy are briefly reviewed. Next it will be shown that the temperature of the maximum of the thermo-luminescence glow peak is directly related with the lanthanide ground state energy location. We will use results on a recent study of YPO 4 : Ce 3 + co-doped with a second lanthanide ion ( Nd 3 + , Sm 3 + , Dy 3 + , Ho 3 + , Er 3 + , or Tm 3 + ) to demonstrate that relationship.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2007.10.007