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20 April 2024 |
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Rare-earth ions incorporation into Lu2Si2O7 scintillator crystals: Electron paramagnetic resonance and luminescence study | | M. Buryi
; V. Laguta
; V. Babin
; O. Laguta
; M.G. Brik
; M. Nikl
; | | Date: |
18 Jan 2020 | | Abstract: | 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 pyrosilicate 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 in the lutetium pyrosilicate for the first time. Optical
absorption, RL and PL measurements in the Lu2Si2O7:Pr crystal demonstrated
presence of only characteristic Pr3+ transitions. In addition, the Pr3+- Pr3+
energy transfer was observed and confirmed experimentally. | | Source: | arXiv, 2001.6677 | | Services: | Forum | Review | PDF | Favorites | |
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