Probing the Cr³⁺ luminescence sensitization in β-Ga₂O₃ with ion-beam-induced luminescence and thermoluminescence.

ABSTRACT: Ion-beam-induced luminescence (IBIL) measurements were performed in Cr-doped β-Ga₂O₃ using both protons and helium ions, showing a strong enhancement of the Cr³⁺ luminescence upon ion irradiation. Theoretical modelling of the IBIL intensity curves as a function of the fluence allowed estimating the effective cross-sections associated with the defect-induced IBIL enhancement and quenching processes. The results suggest that sensitizing the Cr³⁺ luminescence is more efficient for H⁺ than for He⁺ irradiation. Thermoluminescence (TL) studies were performed in the pristine sample, with no TL signal being observed in the spectral region corresponding to the Cr³⁺ emission. In agreement with the IBIL study, upon ion irrad

SUBMITTER: Esteves DM 

PROVIDER: S-EPMC10039926 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature