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| dc.contributor.author | TIRON, Andrew | |
| dc.contributor.author | ZALAMAI, Victor | |
| dc.contributor.author | RUSU, Emil | |
| dc.contributor.author | SYRBU, Nicolae | |
| dc.contributor.author | BEJAN, Nicolae | |
| dc.date.accessioned | 2019-07-05T11:44:34Z | |
| dc.date.available | 2019-07-05T11:44:34Z | |
| dc.date.issued | 2017 | |
| dc.identifier.citation | TIRON, Andrew, ZALAMAI, Victor, RUSU, Emil et al. Radiative Transitions in Sm2+ Doped ZnAl2Se4 and KCl Crystals. In: Microelectronics and Computer Science: proc. of the 9th intern. conf., October 19-21, 2017. Chişinău, 2017, pp. 107-110. ISBN 978-9975-4264-8-0. | en_US |
| dc.identifier.isbn | 978-9975-4264-8-0 | |
| dc.identifier.uri | http://repository.utm.md/handle/5014/3248 | |
| dc.description.abstract | Photoluminescence spectra of ZnAl2Se4:Sm2+ and KCl:Sm2+ due to the processes of charge carriers recombination from levels 5Dj,5Lj,5Gj and 5Hj (4f55d1) on levels 7Fj of samarium ions were investigated. The broad photoluminescence band at energies 1.6 - 1.9 eV due to optical transitions of electrons form 4f shell of samarium ions to 1s level of vacancies was discovered. Emitted energy of it was absorbed by transitions from 7Fj to 5Dj levels. An up-conversion process - electron excitation form 7Fj levels to 5D0, 5D1, 5D2 levels with simultaneous electron transitions to higher energy states 5D3, 5D4, 5Lj, 5Gj, 5Hj with subsequent recombination to 7Fj levels with energy emission in short-wavelength region were found out and investigated. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Technical University of Moldova | en_US |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 United States | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/us/ | * |
| dc.subject | impurity energy levels | en_US |
| dc.subject | photoluminescence spectra | en_US |
| dc.subject | rare-earth elements | en_US |
| dc.subject | radiative recombination | en_US |
| dc.subject | samarium ions | en_US |
| dc.subject | crystals | en_US |
| dc.subject | energie a impurității | en_US |
| dc.subject | spectre a fotoluminescenței | en_US |
| dc.subject | elementele rare | en_US |
| dc.subject | recombinare radiativă | en_US |
| dc.subject | ioni de samarium | en_US |
| dc.subject | cristale | en_US |
| dc.title | Radiative Transitions in Sm2+ Doped ZnAl2Se4 and KCl Crystals | en_US |
| dc.type | Article | en_US |
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