Site selective spectroscopy and defect chemistry of CaO

The site selective spectroscopy of CaO:Eu3+, CaO:Er3+, and CaO:Pr3+ has been studied. The Eu3+ doped system has a cubic and an orthorhombic site which vary with concentration in a manner that can be quantitatively described by a simple defect equilibrium model. The Er3+ and Pr3+ spectra do not have...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 1982-09, Vol.77 (5), p.2322-2329
Main Authors: Porter, Laura C., Wright, John C.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The site selective spectroscopy of CaO:Eu3+, CaO:Er3+, and CaO:Pr3+ has been studied. The Eu3+ doped system has a cubic and an orthorhombic site which vary with concentration in a manner that can be quantitatively described by a simple defect equilibrium model. The Er3+ and Pr3+ spectra do not have transitions from the cubic site because electric dipole transitions are forbidden but there are strong transitions from the orthorhombic site. The Pr3+ system exhibits efficient relaxation between levels separated by 4000 cm−1 and efficient up-conversion. Both processes are attributed to the presence of states other than those in the 4f2 electron configuration.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.444151