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Introduction of nonstoichiometry to AgSbTe 2 -based materials is considered to be an effective way to tune thermoelectric properties similarly to extrinsic doping. To prove this postulate, a systematic physicochemical study of the Ag 1−x Sb 1+x Te 2+x alloys (0 ≤ x ≤ 0.4) was performed. In order to investigate the influence of the cooling rate after synthesis on phase composition and thermoelectric performance, slowly cooled and quenched Ag 1−x Sb 1+x Te 2+x alloys (x = 0; 0.1; 0.17; 0.19; 0.3;doi:10.3390/app8010052 fatcat:wchovfflkja3rn4lcv3umaclxi