Periodic nanostructures induced by point defects in Pb1-xSnxTe

  • Ya. Saliy Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • L. Nykyruy Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
  • G. Cempura AGH University of Science and Technology, Krakow, Poland
  • O. Soroka Ivano-Frankivsk National Medical University, Ivano-Frankivsk, Ukraine
  • T. Parashchuk AGH University of Science and Technology, Krakow, Poland
  • I. Horichok Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk, Ukraine
Keywords: point defects, nanostructures, PbSnTe


Lead tin telluride solid solutions are excellent candidates for the p-type conduction legs of the thermoelectric generator modules. The investigation of their microstructure properties is an important issue, that can effectively modify their electronic and thermal transport properties. In this work, we show the experimental dependences of the Pb1-xSnxTe component distribution, which were identified as periodic nanostructures with an amplitude of λ ≈ 50-500 nm. The observed periodicity is explained by the generation and recombination of point defects due to diffusion processes during the synthesis, sintering, and annealing of samples. A model describing the formation of such inhomogeneities in Pb1-xSnxTe ternary alloys during isothermal annealing is proposed.


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How to Cite
SaliyY., NykyruyL., CempuraG., SorokaO., ParashchukT., & HorichokI. (2023). Periodic nanostructures induced by point defects in Pb1-xSnxTe. Physics and Chemistry of Solid State, 24(1), 70-76.
Scientific articles (Physics)