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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2003, Volume 77, Issue 6, Pages 341–344
(Mi jetpl2763)
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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Luminescence of Eu$^{3+}$ ions in ultradisperse diamond powders
G. E. Malashkevich, V. A. Lapina, G. I. Semkova, P. P. Pershukevich, G. P. Shevchenko Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus
Abstract:
The luminescence of Eu$^{3+}$ ions implanted in ultradisperse diamond powders, activated by impregnating with a solution of Eu(NO$_{3})_3\cdot6$H$_2$O and heat-treated at various temperatures, is studied. A multiple increase in the efficiency of excitation in the charge-transfer band is observed for the $^5!D_0$ state of Eu$^{3+}$ ions as compared to europium nitrate heat-treated similarly. This effect is explained by an increase in the degree of Eu–O bond covalency and a change in the activator coordination polyhedron due to the formation of chemical bonds Eu–O–C.
Received: 10.02.2003
Citation:
G. E. Malashkevich, V. A. Lapina, G. I. Semkova, P. P. Pershukevich, G. P. Shevchenko, “Luminescence of Eu$^{3+}$ ions in ultradisperse diamond powders”, Pis'ma v Zh. Èksper. Teoret. Fiz., 77:6 (2003), 341–344; JETP Letters, 77:6 (2003), 291–294
Linking options:
https://www.mathnet.ru/eng/jetpl2763 https://www.mathnet.ru/eng/jetpl/v77/i6/p341
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