Features of energy transport in EuMgB₅O₁₀ and EuP₃O₉ quasi-one-dimensional lattices

• Veröffentlicht in: Functional Materials
• Datum: 2014
• Hauptverfasser: Kononets, N.V., Seminko, V.V., Maksimchuk, P.O., Bespalova, I.I., Masalov, A.A., Malyukin, Yu.V.
• Format: Artikel
• Sprache: English
• Veröffentlicht: НТК «Інститут монокристалів» НАН України 2014
• Schlagworte: Characterization and properties
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/120409
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Features of energy transport in EuMgB₅O₁₀ and EuP₃O₉ quasi-one-dimensional lattices / N.V. Kononets, V.V. Seminko, P.O. Maksimchuk, I.I. Bespalova, A.A. Masalov, Yu.V. Malyukin // Functional Materials. — 2014. — Т. 21, № 2. — С. 158-163. — Бібліогр.: 16 назв. — англ.

Processes of excitation energy migration in EuMgB₅O₁₀ and EuP₃O₉ quasi-one-dimensional matrices have been investigated by means of steady-state and time-resolved luminescence spectroscopy. It was shown that the patterns of energy migration in these materials are sufficiently different - while for EuMgB₅O₁₀ the most effective energy transport takes place at room temperature via ⁵D₀ →⁷F₁ transitions of Eu³⁺ ion, for EuP₃O₉ energy transfer is more effective at low temperatures and mediated by Eu³⁺-O²⁻ charge transfer states. The difference in energy transport processes can be explained taking into account the peculiarities of phonon subsystem for borate and phosphate matrices.