Abstract
Excitation and emission spectra of Mn2+ ions in calcium chloride have been studied using the photoluminescence technique. From a crystal-field analysis of the excitation spectrum is inferred that the Mn2+ ion occupies the Ca2+ cation site forming octahedral MnCl64- complexes. A ligand inward relaxation around the Mn2+ is noticed as a consequence of smaller ionic radius of Mn2+ than that of host cation. This investigation supports the usefulness of crystal-field spectra for obtaining information on the local structure of impurity ions in ionic lattices.
Original language | English |
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Pages (from-to) | 1456-1460 |
Number of pages | 5 |
Journal | Optical Materials |
Volume | 27 |
Issue number | 8 |
DOIs | |
State | Published - May 2005 |
Externally published | Yes |
Keywords
- CaCl
- Calcium chloride
- Crystal-field
- Mn
- MnCl
- Photoluminescence