This article is cited in
5 papers
Optical properties
Structure, phase composition, and spectral-luminescent properties of ZrO$_2$–Y$_2$O$_3$–Er$_2$O$_3$ crystals
P. A. Ryabochkinaa,
M. A. Borikb,
E. E. Lomonovab,
A. V. Kulebyakinb,
F. O. Milovichc,
V. A. Myzinab,
N. Yu. Tabachkovac,
N. V. Sidorovaa,
A. N. Chabushkina a Ogarev Mordovia State University, Saransk
b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
c National University of Science and Technology «MISIS», Moscow
Abstract:
This paper presents the results of investigations of the structure, phase composition, and spectral-luminescent properties of Er
$_2$O
$_3$-doped zirconia crystals with different Y
$_2$O
$_3$ concentrations: 99.7 mol.% ZrO
$_2$–0.3 mol.% Er
$_2$O
$_3$, 97.2 mol.% ZrO
$_2$–1.0 mol.% Y
$_2$O
$_3$–1.8 mol.% Er
$_2$O
$_3$, 97.2 mol.% ZrO
$_2$–2.0 mol.% Y
$_2$O
$_3$–0.8 mol.% Er
$_2$O
$_3$, 97.2 mol.% ZrO
$_2$–2.5 mol.% Y
$_2$O
$_3$-0.3 mol.% Er
$_2$O
$_3$, 96.3 mol.% ZrO
$_2$–3.4 mol.%– Y
$_2$O
$_3$–0.3 mol.% Er
$_2$O
$_3$, 86 mol.% ZrO
$_2$–13.4 mol.% Y
$_2$O
$_3$–0.6 mol.% Er
$_2$O
$_3$. The transmission electron microscopy investigation has revealed the presence of twins in the 99.7 mol% ZrO
$_2$–0.3 mol% Er
$_2$O
$_3$ crystals with a monoclinic structure and in the 99.7 mol.% ZrO
$_2$–0.3 mol.% Er
$_2$O
$_3$ и в кристаллах 97.2 mol.% ZrO
$_2$–2.5 mol.% Y
$_2$O
$_3$–0.3 mol.% Er
$_2$O
$_3$ and 96.3 mol.% ZrO
$_2$–3.4 mol.% Y
$_2$O
$_3$–0.3 mol.% Er
$_2$O
$_3$crystals with a tetragonal structure. No twins have been found in the 86 mol.% ZrO
$_2$–13.4 mol.% Y
$_2$O
$_3$–0.6 mol.% Er
$_2$O
$_3$ crystals with a cubic structure. The phase composition of these crystals has been investigated using X-ray diffraction. It has been found that the 97.2 mol% ZrO
$_2$–1.0 mol% Y
$_2$O
$_3$–1.8 mol% Er
$_2$O
$_3$ crystals contain only the transformable tetragonal phase t, whereas the 97.2 mol % ZrO
$_2$–2.0 mol% Y
$_2$O
$_3$–0.8 mol% Er
$_2$O
$_3$, 97.2 mol% ZrO
$_2$–2.5 mol% Y
$_2$O
$_3$–0.3 mol% Er
$_2$O
$_3$, and 96.3 mol% ZrO
$_2$–3.4 mol% Y
$_2$O
$_3$–0.3 mol% Er
$_2$O
$_3$ crystals include two tetragonal phases with different degrees of tetragonality c/a: the transformable phase
$t$ and nontransformable phase
$t'$. Specific features of the formation of Er
$^{3+}$ optical centers in zirconia crystals with different concentrations of stabilizing oxides have been revealed using the results of experiments on optical spectroscopy.
Received: 13.01.2015
Accepted: 05.02.2015
Fulltext:
PDF file (2054 kB)
