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Thermal Conductivity and Thermoelectric Figure of Merit of Bi 1−x Sb x Films With 0 < x ≦ 0.3
Author(s) -
Völklein F.,
Kessler E.
Publication year - 1987
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221430114
Subject(s) - figure of merit , thermal conductivity , thermoelectric effect , materials science , crystallite , charge carrier , condensed matter physics , thermoelectric materials , atmospheric temperature range , phonon , analytical chemistry (journal) , thermodynamics , chemistry , optoelectronics , physics , composite material , metallurgy , chromatography
The thermal conductivity λ and thermoelectric figure of merit z of Bi 1−x Sb x films with 0 < x ≦ 0.3 and thicknesses from 30 to 400 nm are measured in the temperature range 80 to 400 K. The lattice thermal conductivity λϱ is determined from the measured total thermal conductivity λ and the calculated charge carrier contribution λ e . The results are discussed in the framework of earlier proposed models for the charge carrier and phonon heat transport in polycrystalline films. The Sb‐concentrations for maximum z ‐values of the films are established.