DIELECTRIC PROPERTIES OF SINGLE CRYSTALS OF Cu2ZnSnS4 AND Cu2ZnSnSe4 SEMICONDUCTORS
Abstract
The dielectric permittivity and electrical conductivity of Cu2ZnSnS4 and Cu2ZnSnSe4 single crystals are investigated in the temperature range 100–300 K at the measuring field frequencies of 103–106 Hz. The values of the majority charge carriers generalized activation energy in these crystals are determined. It is shown, that the absolute values of the studied characteristics increases with the temperature. The dielectric properties dispersion of the studied single crystals is revealed: with the frequency growth the dielectric constant values decreases, and the electrical conductivity increases. It was found that the dielectric constant and conductivity of Cu2ZnSnSe4 single crystals more than Cu2ZnSnS4.
About the Authors
V. G. Hurtavy
Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk
Belarus
Belarus
A. U. Sheleg
Scientific-Practical Materials Research Centre of NAS of Belarus, Minsk
Belarus
Belarus
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