Luminescence and scintillation properties of La 2 [Si 2 O 7 ]:Ce 3+ functional pigment – A concept for UV-protection of coatings
| Autor: | P. Shiv Halasyamani, Niels-Patrick Pook, Thomas Schleid, Marc Entenmann, Thanh Thao Tran, Arnold Adam, Monika E. Bohem |
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| Rok vydání: | 2015 |
| Předmět: |
Scintillation
Photoluminescence Materials science business.industry Process Chemistry and Technology General Chemical Engineering chemistry.chemical_element Fluorescence Pigment Tetragonal crystal system Cerium Optics Chemical engineering chemistry visual_art visual_art.visual_art_medium business Luminescence Photodegradation |
| Zdroj: | Dyes and Pigments. 123:331-340 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2015.08.016 |
| Popis: | Longterm durability is a ubiquitous aim in coatings technology. Inorganic pigments are of great interest in this field because of their high photostability and their capability of preventing photodegradation. In this work, tetragonal (space group: P 4 1 ) cerium(III)-doped La 2 [Si 2 O 7 ] has been synthesized and applied as a novel protective pigment, with regards to stability and environmental friendliness. The characterization of the La 2−x Ce x [Si 2 O 7 ] system revealed relevant photoluminescence and scintillation properties. The non-centrosymmetric host lattice shows second-harmonic generation activity. The decay time of crystalline, non-hygroscopic powders of the compound was shown to be in a competitive range ( 2 [Si 2 O 7 ]:Ce 3+ could be successfully pointed out. |
| Databáze: | OpenAIRE |
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