High pressure optical studies of α-ZnAl2S4:Cr3+
| Autor: | Marijana Despotovic, I. Broussell, Bratimir Panić, B.R. Jovanić, Bozidar Radenkovic |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Chemistry
Mechanical Engineering Hydrostatic pressure Analytical chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Fluorescence Red shift Mechanics of Materials High pressure 0103 physical sciences General Materials Science Emission spectrum 010306 general physics 0210 nano-technology Line (formation) |
| Zdroj: | Materials Research Bulletin. 45:186-189 |
| ISSN: | 0025-5408 |
| DOI: | 10.1016/j.materresbull.2009.09.023 |
| Popis: | The effect of hydrostatic pressure (varying up to 91 kbar) at room temperature emission spectra and fluorescence lifetime of the Cr 3+ R1 line ( 2 E → 4 A 2 transition) in tiospinel ZnAl 2 S 4 was studied for the first time. The studies performed reveal the shift of the R1 line with increasing pressure. Such a red shift was accompanied by a significant change of the fluorescence lifetime. Both trends were successfully explained by a simple model, which resulted in adequate agreement between the calculated and the observed. |
| Databáze: | OpenAIRE |
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