Influence of Cerium on the Spectral and Structural Characteristics of LuBo3(Ce,Tb)

• Published in: Physics of the solid state Vol. 62; no. 11; pp. 2122 - 2131
• Main Authors: Shmurak, S. Z., Kedrov, V. V., Kiselev, A. P., Fursova, T. N., Zver’kova, I. I., Khasanov, S. S.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-11-2020; Springer Nature B.V
• Subjects: Absorption spectra; Calcite; Cerium; Excitation spectra; Luminescence; Optical activity; Optical Properties; Physics; Physics and Astronomy; Rare earth elements; Solid solutions; Solid State Physics; Terbium; orthoborates of rare earth elements; x-ray phase analysis; luminescence spectra; IR spectroscopy; phosphors for LEDs
• ISSN: 1063-7834; 1090-6460
• DOI: 10.1134/S106378342011030X

Studies of the structure, IR absorption spectra, luminescence spectra, and excitation of luminescence of Ce
3+
and Tb
3+
ions in crystals of solid solutions of Lu
1 –

x

–

y
Ce
x
Tb
y
BO
3
at 0 ≤
x
≤ 0.01 and 0.07 ≤
y
 ≤ 0.16 have been performed. It has been shown that the solid solution Lu
1 –

y
Tb
y
BO
3
synthesized at
T
= 970°C has the structure of calcite at 0 ≤
y
≤ 0.07, at
y
≥ 0.16—the structure of vaterite, and in the range 0.07 < 
y
 < 0.16 is two-phase. It has been found that additional doping of 0.5–1 at % Ce
3+
of two-phase Lu
1 ‒

y
Tb
y
BO
3
samples, in which the proportion of the vaterite phase does not exceed ∼20%, leads to a significant reduction of the vaterite phase. It has been shown that Ce
3+
ions can be used as structurally sensitive and optically active marks in the analysis of the structural state of rare earth element orthoborates.