Funct. Mater. 2017; 24 (1): 016-020.
Abnormal enhancement of light output by cation mixing in ZnxMg1-xWO4 nanocrystals
1Institute for Scintillation Materials, STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauky Ave., 61001 Kharkiv, Ukraine
2Institute for Single Crystals, STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Nauky Ave., 61001 Kharkiv, Ukraine
In the paper the effect of light output increase with maximum at x = 0.5 observed previously for the mixed ZnxMg1-xWO4 crystals is demonstrated for nanocrystals with the same composition. The enhancement of light output up to 3 times at the transition from bulk to nanosize was shown. This effect is determined by nonlinear dependence of concentration of oxygen vacancies with minimum at x = 0.5 for ZnxMg1-xWO4 nanocrystals.
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