Luminescence Spectroscopy of Mn2+ in SrF2
Photoluminescence and excitation spectra of the concentration series of SrF2 : Mn2+ (CMn = 0.01 ÷ 1.5%) crystals, as well as their lifetimes at 77 К, are studied. The primary purpose of the paper is to detect Mn2+ isomorphism in photoluminescence, reveal its character, and compare the obtained resu...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Kazan Federal University
2015-12-01
|
| Series: | Учёные записки Казанского университета. Серия Физико-математические науки |
| Subjects: | |
| Online Access: | https://kpfu.ru/portal/docs/F_687434648/157_4_phys_mat_16.pdf |
| _version_ | 1811217170851430400 |
|---|---|
| author | V.D. Shcherbakov |
| author_facet | V.D. Shcherbakov |
| author_sort | V.D. Shcherbakov |
| collection | DOAJ |
| description | Photoluminescence and excitation spectra of the concentration series of SrF2 : Mn2+ (CMn = 0.01 ÷ 1.5%) crystals, as well as their lifetimes at 77 К, are studied. The primary purpose of the paper is to detect Mn2+ isomorphism in photoluminescence, reveal its character,
and compare the obtained results to the available data on other members of the fluorite homologous series. The luminescent properties of SrF2 : Mn 2+ crystals are for the first time explained by the presence of exchange-coupled pairs, cubic and trigonal centers of Mn2+ ions. The presence of noncubic symmetry centers is related to the instability of the Mn6−8 molecule, which is stipulated by the smaller radius of the manganese ion compared to that of Sr2+ , and the striction effect induced by the exchange-coupled pairs. It is assumed that the luminescence of trigonal centers from the second excitation level of the manganese ion is stipulated by the Ham effect. |
| first_indexed | 2024-04-12T06:49:25Z |
| format | Article |
| id | doaj.art-b676b9f3dd3e40678fb5b80f3b3e98f3 |
| institution | Directory Open Access Journal |
| issn | 2541-7746 2500-2198 |
| language | English |
| last_indexed | 2024-04-12T06:49:25Z |
| publishDate | 2015-12-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета. Серия Физико-математические науки |
| spelling | doaj.art-b676b9f3dd3e40678fb5b80f3b3e98f32022-12-22T03:43:24ZengKazan Federal UniversityУчёные записки Казанского университета. Серия Физико-математические науки2541-77462500-21982015-12-011574172181Luminescence Spectroscopy of Mn2+ in SrF2V.D. Shcherbakov0Kazan Federal University, Kazan, 420008 RussiaPhotoluminescence and excitation spectra of the concentration series of SrF2 : Mn2+ (CMn = 0.01 ÷ 1.5%) crystals, as well as their lifetimes at 77 К, are studied. The primary purpose of the paper is to detect Mn2+ isomorphism in photoluminescence, reveal its character, and compare the obtained results to the available data on other members of the fluorite homologous series. The luminescent properties of SrF2 : Mn 2+ crystals are for the first time explained by the presence of exchange-coupled pairs, cubic and trigonal centers of Mn2+ ions. The presence of noncubic symmetry centers is related to the instability of the Mn6−8 molecule, which is stipulated by the smaller radius of the manganese ion compared to that of Sr2+ , and the striction effect induced by the exchange-coupled pairs. It is assumed that the luminescence of trigonal centers from the second excitation level of the manganese ion is stipulated by the Ham effect.https://kpfu.ru/portal/docs/F_687434648/157_4_phys_mat_16.pdfluminescencefluoritemn2+ ionscrystal structurevacancies |
| spellingShingle | V.D. Shcherbakov Luminescence Spectroscopy of Mn2+ in SrF2 Учёные записки Казанского университета. Серия Физико-математические науки luminescence fluorite mn2+ ions crystal structure vacancies |
| title | Luminescence Spectroscopy of Mn2+ in SrF2 |
| title_full | Luminescence Spectroscopy of Mn2+ in SrF2 |
| title_fullStr | Luminescence Spectroscopy of Mn2+ in SrF2 |
| title_full_unstemmed | Luminescence Spectroscopy of Mn2+ in SrF2 |
| title_short | Luminescence Spectroscopy of Mn2+ in SrF2 |
| title_sort | luminescence spectroscopy of mn2 in srf2 |
| topic | luminescence fluorite mn2+ ions crystal structure vacancies |
| url | https://kpfu.ru/portal/docs/F_687434648/157_4_phys_mat_16.pdf |
| work_keys_str_mv | AT vdshcherbakov luminescencespectroscopyofmn2insrf2 |