Point Defects and Physico-Chemical Properties of Crystals in Pb-Bi-Te System
Within crystalquasichemical formalism models of point defects of crystals in the Pb-Bi-Te system have been specified considering the amphoteric action of impurities in bismuth doped lead telluride PbTe:Bi, and solid solution formation mechanisms for РbТе-ВіТе and РbТе-Ві2Те3 have been examined. Dependences of Hall concentration and the concentration of point defects on the composition and the initial deviation from stoichiometry in the basic matrix have been calculated.