dc.contributor.author |
Nizamutdinov A. |
|
dc.contributor.author |
Kuznetsov S. |
|
dc.contributor.author |
Konyushkin V. |
|
dc.contributor.author |
Nakladov A. |
|
dc.contributor.author |
Voronov V. |
|
dc.contributor.author |
Madirov E. |
|
dc.contributor.author |
Khadiev A. |
|
dc.contributor.author |
Gorieva V. |
|
dc.contributor.author |
Semashko V. |
|
dc.date.accessioned |
2020-01-21T20:38:56Z |
|
dc.date.available |
2020-01-21T20:38:56Z |
|
dc.date.issued |
2019 |
|
dc.identifier.issn |
0925-3467 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/157560 |
|
dc.description.abstract |
© 2019 Elsevier B.V. The single-phase Y1-x-yCexYbyF3 solid solution powders were prepared by melt crystallization technique. The 5d-4f interconfigurational luminescence of Ce3+ ions and 2F5/2-2F7/2 luminescence of Yb3+ ions in YF3 crystalline powder doped with Ce3+/Yb3+ ions pair upon 266 nm excitation were studied. The energy transfer from Ce3+ to Yb3+ after 266 nm excitation has complex character and deals with the UV excitation induced dynamic processes and color centers formation in YF3:Ce3+ powders. It was shown that UV light irradiation leads to in absorbing in 525–650 nm spectral range which is not observed for Ce3+-Yb3+ containing samples. This speaks for additional channels of Ce3+ and Yb3+ excitation as a result of recombination of free charge carriers originated from excited state absorption by Ce3+ ions and trapped by Yb3+ ions. The efficiency of energy transfer from Ce3+ to Yb3+ was 22,6% for YF3:Ce(0.05 mol. %):Yb(10.0 mol.%) solid solution with 0,91% down-conversion luminescence external quantum yield. |
|
dc.relation.ispartofseries |
Optical Materials |
|
dc.title |
Down-conversion luminescence of Ce-Yb ions in YF<inf>3</inf> |
|
dc.type |
Article |
|
dc.relation.ispartofseries-volume |
95 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.source.id |
SCOPUS09253467-2019-95-SID85069636795 |
|