ISSN 1070-4272, Russian Journal of Applied Chemistry, 2016, Vol. 89, No. 10, pp. 1601−1606. © Pleiades Publishing, Ltd., 2016.
Original Russian Text © O.V. Davydova, N.E. Drobyshevskaya, E.N. Poddenezhnyi, A.A. Boiko, A.V. Zdravkov, N.N. Khimich,
2016, published in Zhurnal
Prikladnoi Khimii, 2016, Vol. 89, No. 10, pp. 1279−1284.
INORGANIC SYNTHESIS AND INDUSTRIAL
Oxide phosphors have been attracting considerable
attention of scientists and developers of optical and
optoelectronic devices of various classes for various
purposes . The industry mostly manufactures
luminescent powders with micrometer particles. It is known
that, on passing to ultradispersed (submicrometer and
nanometer) powders, their physical and physicochemical
parameters are changed. The properties of systems of
this kind may noticeably differ from those of their larger
analogs due to the dimension factors, structural disorder,
and surface defects. Among other things, the luminescence
characteristics also change: quantum efﬁ ciency, lifetime,
and mechanism of excitation energy transfer.
The nanosize Y
is of particular interest for
application in ﬁ eld-emission displays [2, 3] and color
security printing  and for production of transparent
laser ceramics [5–8].
It was found in [9–13] that the codoping of Y
Eu with Zn ions and the calcination of samples at
temperatures of 1000 and 1200°C make the luminescence
intensity several times higher.
The need to develop ultradispersed phosphors gave
rise to a large number of variants of their synthesis: sol-
gel process, coprecipitation of hydroxides, hydrothermal
method, etc. [14–20]. All these techniques include the
mixing of starting reagents in the liquid phase, formation
of precursors, and subsequent thermal treatment at
1100–1200°C. There also exists a fundamentally different
approach to the synthesis of high-purity ultradispersed
oxide phosphors. This approach, based on the combustion
of nitrate salts in various organic compounds (fuels),
is a variety of the self-propagating high-temperature
synthesis (SHS). For example, citric acid, carbamide,
and carbohydrates (fructose, saccharose) have been rather
extensively studied as a reducing agent (fuel) [21–23].
These processes are attractive because of being simple
and inexpensive and due to the possibility of using both
thermal and microwave energy for initiating the reaction.
In view of the aforesaid, development of new energy-
saving methods for synthesis of ultradispersed oxide
phosphors is of high scientiﬁ c and practical importance.
Nanostructured powders of yttrium-zinc oxide doped
with europium ion, Y
–ZnO : Eu
, were synthesized
on the basis of zinc-modiﬁ ed Y
matrix (red phosphors)
by the method of thermochemical reactions (combustion)
Thermochemical Synthesis of Luminescent Materials
in the Y
–ZnO System Doped with Eu
O. V. Davydova
, N. E. Drobyshevskaya
, E. N. Poddenezhnyi
, A. A. Boiko
A. V. Zdravkov
, and N. N. Khimich
Sukhoi State Technical University of Gomel, pr. Oktyabrya 48, Gomel, 246746 Belarus
Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences,
nab. Makarova 2, St. Petersburg, 199034 Russia
Kirov Military Medical Academy, ul. Akademika Lebedeva 6, St. Petersburg, 194044 Russia
Received October 18, 2016
Abstract—Powders were synthesized in the yttrium oxide + zinc oxide system doped with europium oxide by the
method of redox combustion of a mixture of yttrium, zinc, and europium nitrates in the presence of saccharose
(fuel). The structure and the physicochemical and luminescent properties of the particles being formed and of a
ceramic on their basis were examined.