Abstract
The present work is focused on the enhancement of luminescence in PbWO 4 by boron (B) ions doping. A series of boron-doped PbWO 4 polycrystals were synthesized by solid-state reaction in air atmosphere. The crystal structure of PbWO 4 was decided from powder X-ray diffraction data. The X-ray excited luminescence, UV excitation and emission spectra measurements were conducted on these samples under the same conditions to evaluate the doping effects of luminescence on PbWO 4. The B-doped PbWO 4 gave an enhanced broad emission band centered between 420 and 520 nm depending on different doping concentration. Another scintillating crystal, Bi 4Ge 3O 12, was also introduced to compare the effects of luminescence with B-doped PbWO 4. The doping mechanism of B ions in the PbWO 4 lattices was briefly discussed according to the present experimental results.
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