Abstract
We synthesized a violet-blue phosphor with a solid-state reaction. The excitation and emission spectra of this phosphor showed that all were broadband due to transitions of . The phosphors with different concentrations presented violet-blue luminescence for ultraviolet [(UV) ] excitation. The optimum concentration of in is determined to be . The luminous efficiency was found to be for the violet-blue fluorescent lamp and for the violet-blue phosphor-converted light-emitting diode, respectively. would be a promising phosphor for converting the UV radiation to violet-blue emission for a novel high light-conversion efficiency phototherapy illuminator.
© 2010 Optical Society of America
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