Thermodynamic analysis of the composition of the condensed and gas-vapor phases of Bi/sub 2/Te/sub 3/-based solid solutions doped with organic and inorganic haloid compounds

Thermodynamic analysis was made with the help of a personal computer. A thermodynamic method for the identification of characteristics for the equilibrium of heterogeneous systems based on the principle of maximum entropies was taken as a basis for the algorithm of the software complex. Thermodynamic, thermophysical and thermochemical characteristics of individual materials were taken as the basis of the information contained in the database. Thermodynamic calculations of the composition of condensed and gas-vapor phases of Bi/sub 2/Te/sub 3/-based solid solutions for particular conditions of the synthesis with the application of various dopants has been affected. Research has been undertaken into the behaviour of haloid-containing dopants in gas-vapor and condensed liquid and solid phases depending on the type of a dopant: organic haloid compounds, inorganic haloid compounds. The effect of haloid-containing dopants on thermoelectric characteristics has been studied.