Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7907044 | Optical Materials | 2018 | 4 Pages |
Abstract
Cr3+ ions were introduced to the Ba2Mg(BO3)2 host to provide information about the site occupation, crystal field strength, and the site symmetry. The samples were synthesized by solid-state reaction. Emission observed under 440â¯nm excitation was characteristic for Cr3+ ions in strong octahedral ligand field with Dq/B parameter ratio 2.74 and sharp R line at 698â¯nm. The charge mismatch between Cr3+ dopant and Mg2+ host ion is compensated by the creation of Cr3+ pair in the vicinity of Ba or Mg vacancy. The emission decay curve is bi-exponential with decay times 1.2 and 13.3â¯ms.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Bartosz Bondzior, Natalia Miniajluk, PrzemysÅaw J. DereÅ,