Photoluminescence of synthetic titanite-group pigments
- Author(s)
- Lutz Nasdala, Teodora Stoyanova Lyubenova, Michael Gaft, Manfred Wildner, Wilfredo Diegor, Christian Petautschnig, Dominik Talla, Christoph Lenz
- 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+ → Cr3+ energy transfer).
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Masaryk University, Universidad Jaume I, Memorial University of Newfoundland, Laser Distance Spectrometry Ltd.
- Journal
- Chemie der Erde / Geochemistry
- Volume
- 74
- Pages
- 419-424
- No. of pages
- 6
- ISSN
- 0009-2819
- DOI
- https://doi.org/10.1016/j.chemer.2014.04.004
- Publication date
- 10-2014
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105116 Mineralogy, 1030 Physics, Astronomy
- Keywords
- ASJC Scopus subject areas
- Geophysics, Geochemistry and Petrology
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/5fada5ef-935a-471a-a64e-473c63f0aeb7