Rare-earth ions incorporation into Lu2Si2O7 scintillator crystals: Electron paramagnetic resonance and luminescence study

článek v časopise ve Web of Science, Jimp

angličtina

The present work reports results of the electron paramagnetic resonance (EPR), optical absorption, radio- and photoluminescence (RL and PL) complex study of the Lu2Si2O7:Pr and Lu2Si2O7:Ce pymsilicate crystals. In both crystals, the EPR spectra demonstrate the presence of characteristic signals originating from the Yb3+, Er3+, Nd3+, Dy3+, Gd3+ and V3+ ions existing in the material as uncontrolled impurities. The corresponding spectra (except for Gd3+) have been analysed in detail and g-and hyperfine tensors are determined for all these ions for the first time in the lutetium pyrosilicate lattice. Optical absorption, RL and PL measurements in the Lu2Si2O7:Pr crystal have shown only the characteristic Pr3+ transitions. In addition, the Pr3+- Pr3+ energy transfer was observed and confirmed experimentally.

LUTETIUM SILICATE SCINTILLATORS; SOLID-STATE; DEFECTS; GROWTH; ABSORPTION; ALUMINUM; IMPURITY; CENTERS; YTTRIUM; LPS

Buryi, M.; Laguta, V.; Babin, V.; Laguta, O.; Brik, MG.; Nikl, M.

1. 8. 2020

ELSEVIER

AMSTERDAM

1873-1252

OPTICAL MATERIALS

106

1

Nizozemsko

109930-1

109930-7

7

https://www.sciencedirect.com/science/article/pii/S0925346720302767