Abstract
The mechanism of intrinsic and impurity electrical conductivity of semiconductors based on Bi2Te2.5Se0.5 has been elucidated. The nature and reasons for the dependence of electrical conductivity on various external influences are considered. In this case, the temperature dependence of electrical conductivity, light absorption and photoconductivity of Bi2Te2.5Se0.5 were used as external influences. And also the influence of the electric field was studied and it was found that in this case the value of the critical energy is 107V/m.
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