N. V. Babaevskaya, A. S. Kryzhanovskaya, N. A. Matveevskaya, P. V. Mateichenko, R. P. Yavetskii, A. V. Tolmachev, S. E. Tret'yak, “Composite phosphor films based on spherical Lu$_2$O$_3$:Eu$^{3+}$ nanoparticles”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2011, Volume 37, Issue 4,Pages 59

This article is cited in 3 papers

Composite phosphor films based on spherical Lu$_2$O$_3$:Eu$^{3+}$ nanoparticles

N. V. Babaevskaya^ab, A. S. Kryzhanovskaya^ab, N. A. Matveevskaya^ab, P. V. Mateichenko^ab, R. P. Yavetskii^ab, A. V. Tolmachev^ab, S. E. Tret'yak^ab

^a Institute for Single Crystals, National Academy of Sciences of Ukraine, Kharkov
^b Institute of Scintillation Materials, National Academy of Sciences of Ukraine, Kharkiv

Abstract: A nanopowder of Lu$_2$O$_3$:Eu$^{3+}$ ($C_{\mathrm{Eu}}$ = 5 at.%) was obtained by coprecipitation with urea (NH$_2$)$_2$CO from aqueous solutions. Using this nanopowder, compact Lu$_2$O$_3$:Eu$^{3+}$ films with thicknesses within 20–200 $\mu$m and a relative density up to 65% of the theoretical limit were deposited using the spin-coating and painting techniques. The films were characterized by scanning electron microscopy, X-ray diffraction, and X-ray luminescence (XRL) measurements. It is established that the XRL intensity depends on the phosphor/organic binder ratio and thickness of the film. The most intense XRL and most homogeneous structure are observed for 20-$\mu$m-thick Lu$_2$O$_3$:Eu$^{3+}$ films.

Received: 18.10.2010