Spectral kinetic characteristics of Li,Bi-activated cadmium tungstate crystals

• DOI: 10.1007/s10812-013-9774-8
• Publication Date: 2013-07-03T03:53:52Z
• Authors: V. M. Lisitsyn; D. T. Valiev; L. A. Lisitsyna; I. A. Tupitsyna; E. F. Polisadova; V. I. Oleshko
• Keywords: Cathodoluminescence; Tungstate; Bismuth

Pulsed cathodoluminescence of cadmium tungstate crystals doped with lithium and bismuth was investigated. It was shown that emission spectra of the crystals were dominated by a single band with a maximum at 2.6 eV. The luminescence decay curves of CdWO 4 , CdWO 4 :Li, and CdWO 4 :Li+Bi crystals were similar and could be described by exponential functions with τ = 13 μs at 300 K. It was found that the luminescence light yield did not vary substantially after adding dopants.