| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 6305846 | Chemie der Erde - Geochemistry | 2014 | 6 Pages |
Abstract
Chromium-doped titanite and malayaite samples, which were synthesised to evaluate their performance as ceramic pigments, show remarkable photoluminescence behaviour. Emissions of centres related to traces of trivalent rare-earth elements (REE) are observed exclusively from chromium-free samples. Their Cr-doped analogues (containing the same REEs on the same concentration levels), in contrast, only show broad-band Cr3+ emission whereas all REE emissions are suppressed. This behaviour is assigned to quenching of REE emissions by chromium centres (i.e., REE3+ â Cr3+ energy transfer).
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
Lutz Nasdala, Teodora Stoyanova Lyubenova, Michael Gaft, Manfred Wildner, Wilfredo Diegor, Christian Petautschnig, Dominik Talla, Christoph Lenz,