Intrinsic luminescence of SrF2 nanoparticles
| Autor: | A. V. Zhyshkovych, Andrey N. Vasil’ev, A. S. Voloshinovskii, M. Chylii, A.V. Gektin, T.M. Demkiv, Piotr A. Rodnyi, V. V. Vistovskyy, N. Gloskovska |
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| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Quenching Materials science Condensed Matter::Other Exciton Biophysics Physics::Optics Nanoparticle 02 engineering and technology General Chemistry Electron 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics Condensed Matter::Materials Science 0103 physical sciences Atomic physics Diffusion (business) 0210 nano-technology Luminescence Excitation Biexciton |
| Zdroj: | Journal of Luminescence. 190:10-15 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2017.05.036 |
| Popis: | The influence of SrF 2 nanoparticle size on their luminescence and kinetic properties under photo- and X-ray excitation was studied. The self-trapped exciton luminescence intensity was shown to reveal dependence on both the nanoparticle size and the range of excitation energies. The lowest sensitivity to the nanoparticle size is observed in the case of excitation in the region of optical exciton formation. The recombination of electrons with surface defects and non-radiative decay of excitons due to diffusion to the surface is found to be the determining factors of the luminescence quenching in the case of X-ray excitation. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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