On the luminescence origin in Y.sub.2./sub.SiO.sub.5./sub.:Ce and Lu.sub.2./sub.SiO.sub.5./sub.:Ce single crystals

0532568 - FZÚ 2021 RIV NL eng J - Článek v odborném periodiku
Babin, Vladimir - Laguta, Valentyn - Nikl, Martin - Pejchal, Jan - Yoshikawa, A. - Zazubovich, S.
On the luminescence origin in Y₂SiO₅:Ce and Lu₂SiO₅:Ce single crystals.
Optical Materials. Roč. 103, May (2020), s. 1-10, č. článku 109832. ISSN 0925-3467. E-ISSN 1873-1252
Grant CEP: GA MŠMT EF16_013/0001406; GA ČR(CZ) GA20-12885S
Grant ostatní: OP VVV - SAFMAT(XE) CZ.02.1.01/0.0/0.0/16_013/0001406
Institucionální podpora: RVO:68378271
Klíčová slova: photoluminescence * EPR * oxyorthosilicates * single and dimer Ce³⁺ centers
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.080, rok: 2020
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.optmat.2020.109832

Photoluminescence characteristics of single crystals of Ce3+ - doped rare-earth oxyorthosilicates RE2SiO5 (RE: Y, Lu) with different Ce3+ concentrations are studied in the 4.2-500 K temperature range by the steady-state and time-resolved spectroscopy methods. On the basis of the obtained results and analysis of the literature data, the suggestion is made that the dominating higher-energy (violet) doublet emission band of Y2SiO5:Ce and Lu2SiO5:Ce (denoted earlier as the Ce1 emission) arises from the Ce3+ ions substituting for the host crystal lattice rare-earth RE3+ ions in both the RE1 and the RE2 lattice sites. The weaker lower-energy (blue) broad emission band is ascribed to the dimer Ce3+ - related centers.
Trvalý link: http://hdl.handle.net/11104/0311028