Processes of excitation energy transport in EuPO₄ and EuP₃O₉ nanocrystals

• Дата: 2017
• Автори: Kononets, N.V., Seminko, V.V., Maksimchuk, P.O., Aslanov, A.V., Bespalova, I.I., Masalov, A.A., Malyukin, Y.V.
• Формат: Стаття
• Мова: English
• Опубліковано: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2017
• Назва видання: Физика низких температур
• Теми: Low dimensionality and inhomogeneity effects in quantum matter
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/175143
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Processes of excitation energy transport in EuPO₄ and EuP₃O₉ nanocrystals / N.V. Kononets, V.V. Seminko, P.O. Maksimchuk, A.V. Aslanov, I.I. Bespalova, A.A. Masalov, Y.V. Malyukin // Физика низких температур. — 2017. — Т. 43, № 8. — С. 1252-1256. — Бібліогр.: 27 назв. — англ.

Processes of excitation energy transport were investigated for EuPO₄ and EuP₃O₉ nanocrystals, in which Eu³⁺ ions form three- and one-dimensional subsystems, respectively. It was determined that for EuPO₄ nanocrystals ⁵D₀ luminescence quenching manifested itself even at low temperatures due to effective phonon-assisted energy migration. At the same time, for EuP₃O₉ nanocrystals no influence of energy migration on the luminescence quenching was observed in the whole temperature range from 10 to 293 K that can be ascribed to modification of phonon spectra for EuP₃O₉ nanocrystals as compared to their bulk counterparts.