Abstract

Dy 3+-doped SrB 4O 7 phosphors were synthesized by solid-state reaction. The luminescence properties of white-light SrB 4O 7:Dy 3+ under vacuum ultraviolet (VUV) excitation were firstly investigated. According to strong absorption around 147 nm in excitation spectra, energy can easily be transferred to the energy levels of Dy 3+ from host absorption, and hence luminescence of SrB 4O 7:Dy 3+ under VUV excitation was effective, and it has the potential of being applied to a white lamp-house for mercury-free lamp.

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