https://doi.org/10.1140/epjb/e2013-30625-3
Regular Article
Luminescent properties of RE2O3 (RE = Lu, Sc, Y) single crystals and ceramics*
1
Institute of Physics AS CR, Cukrovarnicka 10, 16253
Prague, Czech
Republic
2
IMR, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577
Miyagi,
Japan
3
NICHe, Tohoku University, 6-6-10 Aoba, Aramaki, Aoba-ku, Sendai,
980-8579
Miyagi,
Japan
a e-mail: babinv@fzu.cz
Received:
17
July
2012
Received in final form:
21
December
2012
Published online:
13
March
2013
The optical properties of undoped RE2O3 (RE = Lu, Sc, Y) sesquioxides, which were prepared by different methods, are reported. Luminescent characteristics, including emission, excitation spectra as well as luminescence decay kinetics were studied in a wide spectral range. The main intrinsic emission bands are located in ultraviolet region and the origin of these luminescent bands is different owing to the different electronic structure. In present paper, the spectral characteristics of these samples are considered and compared with those studied before; the origin of the intrinsic bands is discussed.
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013