Giorgi Kakhniashvili

Determination of Electronic Quality Factor, Universal Electrical Conductivity, Effective Mass and Mobility of Charge Carriers of Alloy N-SixGe1-X

Karlo Barbakadze, Giorgi Kakhniashvili, Zurab Adamia & Irakli Nakhutsrishvili · Journal of Materials Science Research and Reviews · 2023

The temperature dependences of the electronic quality factor and the universal electrical conductivity of n-type SixGe1-x, as well as the dependences of the Seebeck coefficient on the specific and the universal conductivities, are studied. The effective masses and mobilities of c...

Open access Research Article

Dependence of the Seebeck Coefficient on Specific and Universal Electrical Conductivities of Bi2Sr2Co1.8Oy Thermoelectric Doped with Strontium Borate and Graphene

Irakli Nakhutsrishvili, Giorgi Kakhniashvili, Iamze Kvartskhava & Akaki Gigineishvili · Journal of Materials Science Research and Reviews · 2023

The Seebeck effect has found its application in many areas of human activity. This effect is applicable in the thermoelectric generators for converting waste heat into electrical energy. Bi2Sr2Co1.8Oy ceramics is a promising thermoelectric material. Incorporation of suitable dopa...

Open access Research Article

Maximization of the Figure of Merit of Alloy Si\(_x\)Ge\(_{1-x}\)

Irakli Nakhutsrishvili, Zurab Adamia & Giorgi Kakhniashvili · Journal of Materials Science Research and Reviews · 2023

The dependence of maximums of figure of merit ((ZT)max) on thermoelectric quality factor (B) for thermoelectric SixGe1-x of n- and p-type conductivity with a charge carrier concentration of 3.21026m-3 has been considered. The values of x are: 0.7, 0.72, 0.76, 0.8 and 0.83. For al...

Open access Research Article