Processes of energy migration in mixed europium-lanthanum magnesium borate nanocrystals

Processes of excitation energy migration in europium magnesium borate nanocrystals at different concentrations of neodymium and lanthanum ions were investigated by steady-state and time-resolved luminescence spectroscopy. Energy migration in neodymium doped mixed europium-lanthanum magnesium borate...

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Bibliographic Details
Published in:Spectroscopy letters 2017-08, Vol.50 (7), p.399-403
Main Authors: Kononets, N. V., Seminko, V. V., Maksimchuk, P. O., Bespalova, I. I., Masalov, A. A., Malyukin, Yu. V., Grinyov, B. V.
Format: Article
Language:English
Subjects:
Energy migration
Europium
europium magnesium borate
Excitation
Lanthanum
Luminescence
Magnesium
Migration
Nanocrystals
Nanostructure
Neodymium
one-dimensional transport
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Summary:Processes of excitation energy migration in europium magnesium borate nanocrystals at different concentrations of neodymium and lanthanum ions were investigated by steady-state and time-resolved luminescence spectroscopy. Energy migration in neodymium doped mixed europium-lanthanum magnesium borate nanocrystals is well fitted by ∼t 0.33 dependence indicating one-dimensional transport to neodymium energy acceptors through europium chains. Variation of neodymium and lanthanum concentrations have shown that at room temperature excitation can migrate over the distances up to 100 nm that is comparable with the size of nanocrystal.
ISSN:0038-7010
1532-2289
DOI:10.1080/00387010.2017.1345946