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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2013, 4 (5), P. 648-656

DEPENDENCE OF QUANTUM YIELD OF UP-CONVERSION LUMINESCENCE ON THE COMPOSITION OF FLUORITE-TYPE SOLID SOLUTION NaY_1-x-yYb_xEr_yF₄

D. S. Yasyrkina – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
S. V. Kuznetsov – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
A. V. Ryabova – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
D. V. Pominova – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
V. V. Voronov – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
R.P. Ermakov – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia
P.P. Fedorov – A. M. Prokhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov Street, Moscow, 119991, Russia; ppfedorov@yandex.ru

A study of the properties of polycrystalline fluorite-type NaY_1-x-yYb_xEr_yF₄ solid solutions demonstrated that NaY_0.87Yb_0.10Er_0.03F₄ and NaY_0.885Yb_0.1Er_0.015F₄ samples produced up-conversion luminescence with 3.35% and 3.62% quantum yields, which were higher than quantum yields of the other NaY_1-x-yYb_xEr_yF₄ samples. NaY_1-x-yYb_xEr_yF₄ specimens were prepared by co-precipitation from aqueous solutions by drop-wise addition of rare earth nitrate solutions to aqueous sodium fluoride.

Keywords: fluorides, nanopowders, sodium, yttrium, up-conversion luminescence, quantum yield.

PACS 78.20-e

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