Abstract
The dependences of the integral intensity and kinetics of mid-IR cathodoluminescence (CL) of Fe:ZnSe crystals on an iron concentration varying from 0.01 to 14 wt % are studied in the temperature range from 78 to 300 K. It is found that the maximum mid-IR CL intensity in Fe:ZnSe is observed at an Fe concentration of about 2 wt % at room temperature and 0.8–1 wt % at liquid nitrogen temperature. A further increase in iron concentration leads to a decrease in the CL decay time.
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ACKNOWLEDGMENTS
This work was supported by the Program of the Presidium of the Russian Academy of Sciences “Fundamentals of Dual-Purpose Innovative Technologies for Homeland Defense” (project “Study of the Possibility of Creating Highly Efficient IR (4–5 μm) Lasers Based on Iron-Doped ZnSe Crystals Excited by Hot Electrons”).
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Chukichev, M.V., Chegnov, V.P., Rezvanov, R.R. et al. Mid-IR Cathodoluminescence of Fe:ZnSe. Opt. Spectrosc. 125, 870–873 (2018). https://doi.org/10.1134/S0030400X19020097
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DOI: https://doi.org/10.1134/S0030400X19020097