Microscopic origin of the optical processes in blue sapphire
| Autor: | Aron Walsh, Stephen C. Parker, Scott M. Woodley, C. Richard A. Catlow, Jessica K. Bristow |
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| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Chemistry
Multidisciplinary Corundum FE Catalysis Absorption Impurity Materials Chemistry Alpha-AL2O3 Transition-metal ions Spectroscopy Range (particle radiation) Science & Technology Chemistry Organic Chemistry Metals and Alloys General Chemistry Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical physics Physical Sciences Chemical Sciences Ceramics and Composites Sapphire Defect TI Doped sapphire Optical Processes Impurities |
| Zdroj: | Bristow, J K, Parker, S C, A. Catlow, C R, Woodley, S M & Walsh, A 2013, ' Microscopic origin of the optical processes in blue sapphire ', Chemical Communications, vol. 49, no. 46, pp. 5259-5261 . https://doi.org/10.1039/c3cc41506f |
| DOI: | 10.1039/c3cc41506f |
| Popis: | Al2O3 changes from transparent to a range of intense colours depending on the chemical impurities present. In blue sapphire, Fe and Ti are incorporated; however, the chemical process that gives rise to the colour has long been debated. Atomistic modelling identifies charge transfer from Ti(III) to Fe(III) as being responsible for the characteristic blue appearance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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