Optical properties and energy levels of Ce3+ in lutetium pyrosilicate scintillator crystal - Archive ouverte HAL
Article Dans Une Revue Journal of Applied Physics Année : 2004

Optical properties and energy levels of Ce3+ in lutetium pyrosilicate scintillator crystal

Résumé

Cerium doped lutetium pyro-silicate Ce3+:Lu2Si2O7 (LPS) is an inorganic scintillator that displays particularly promising performance. The spectroscopic properties of pure and Ce3+-doped Lu2Si2O7 are investigated. X-ray-excited luminescence, time-resolved excitation and emission spectroscopy, as well as decay time spectra are presented. For better understanding of the scintillation mechanism, several approaches were undertaken to locate the Ce3+ energy levels relative to levels of LPS host. To estimate the energy position of Ce3+ 4f levels with respect to the valence band, x-ray photoemission spectroscopy (XPS) was used. Scintillation properties of LPS: Ce are explained in terms of the relative positions of Ce3+-5d levels and the conduction band.
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Dates et versions

hal-02418335 , version 1 (18-12-2019)

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Ludivine Pidol, Bruno Viana, Andrée Kahn-Harari, Anouk Galtayries, Aurélie Bessière, et al.. Optical properties and energy levels of Ce3+ in lutetium pyrosilicate scintillator crystal. Journal of Applied Physics, 2004, 95 (12), pp.7731-7737. ⟨10.1063/1.1738524⟩. ⟨hal-02418335⟩
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