Investigation of host-to-activator energy transfer and surface losses in SrY2O4:Eu3+ under VUV excitation
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We have completed a study of the optical properties of SrY2O4:Eu3+ under vacuum ultraviolet (VUV) excitation. Reflectance measurements on the undoped material yield a calculated band gap of about 6.1 eV. Studies on the doped material indicate that Eu3+ occupies the Y(1) and Y(2) sites in this host. Host-to-activator energy transfer calculations indicate a preference for transfer to Eu3+ at the Y(2) site. Modeling of the transfer efficiency data leads us to estimate that about 35% of absorbed radiation is lost to the surface under excitation near the band edge.
Atkins, R., & Diaz, A. L. (2008). Investigation of host-to-activator energy transfer and surface losses in SrY2O4:Eu3+ under VUV excitation. Journal of Luminescence, 128(9), 1463–1470. https://doi.org/10.1016/j.jlumin.2008.01.017
Journal of Luminescence
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