Abstract
ZnWO4, ZnWO4:Fe and ZnWO4:Mo crystals were investigated by the methods of time-resolved spectroscopy in the temperature range of 4.2–300K. It is shown that the Mo and Fe impurities significantly reduce the light yield of ZnWO4. The main 2.5eV emission of ZnWO4 and the 1.77eV emission band of ZnWO4:Mo are shown to originate from the triplet excited state of the WO6 and MoO6 complex, respectively. In ZnWO4:Fe,Mo the MoO6 emission band is shifted to lower energies due to the perturbing influence of the iron impurity. No perturbing effect of Fe or Mo ions was observed for the main emission of ZnWO4:Fe and ZnWO4:Mo. The creation spectrum of self-trapped holes was measured for ZnWO4, ZnWO4:Fe and ZnWO4:Mo crystals in the energy region of 4–30eV.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
