Thermal conductivity of PbSe1-xTex (x = 0 – 0.04) solid solutions
Keywords:
PbSe1-xTex solid solutions, thermal conductivity, composition, temperature, percolationAbstract
The dependence of lattice thermal conductivity λL of pressed samples of PbSe1-xTex solid solutions on the composition (x = 0 – 0.04) at a temperature of 325 K is obtained. The λL(х) curve shows a maximum near х = 0.0075. Measurement of the temperature dependence of λL in the range of 150-600 K showed that a concentration anomaly in the same range of compositions is also observed on the composition dependence of power factor β in the temperature dependence of λL . The non-monotonic character of the λL(х) and β(х) dependences is associated with critical phenomena accompanying the transition of the percolation type from dilute to concentrated solid solutions. In the study and practical application of PbSe1-xTex solid solutions, it is necessary to take into account the non-monotonic nature of the change in thermal conductivity with composition. Bibl. 15, Fig. 3.
References
Rowe D.M. (1995). CRC Handbook of Thermoelectrics. Boca Raton, London, New York, Washington: CRC Press.
Anatychuk L.I. (1979). Termoelementy i termoelektricheskiie ustroistva. Spravochnik [Thermoelements and thermoelectric devices. Reference book]. Kyiv: Naukova dumka [in Russian].
Ren Z., Lan Y., Zhang Q. (2017). Advanced thermoelectrics: Materials, contacts, devices, and systems. Boca Raton: CRC Press Taylor & Francis Group.
Pei Y., Shi X., LaLonde A., Wang H., Chen L., Snyder G.J. (2011). Convergence of electronic bands for high performance bulk thermoelectrics. Nature Letter, 473, 66-69.
Basu R., Bhattacharya Sh., Bhatt R., Singh A., Aswal D. K., Gupta Sh. K. (2013). Improved thermoelectric properties of Se-doped n-type PbTe1-xSex (0 ≤ x ≤ 1). Journal of Electronic Materials, 42(7), 2292-2296.
Li J.Q., Li S.P., Wang Q.B., Wang L., Liu F.S., Ao W.Q. (2011). Synthesis and thermoelectric properties of the PbSe1−xTex alloys. Journal of Alloys and Compounds, 509, 4516-4519.
Tian Zh., Garg J., Esfarjani K., Shiga T., Shiomi J., Chen G. (2012). Phonon conduction in PbSe, PbTe, and PbTe1-xSex from first-principles calculations. Phys. Rev. B, 85, 184303.
Rogacheva Е.I., Nashchekina О.N., Dresselhaus М.S. (2005). Thermal conductivity isotherm anomalies in semiconductor solid solutions based on IV-VI compounds. J. Thermoelectricity, 4, 82-90.
Rogacheva E.I., Vodorez O.S., Nashchekina O.N., Dresselhaus M.S. (2014). Concentration anomalies of the thermal conductivity in PbTe–PbSe semiconductor solid solutions. Phys. St. Sol. B, 251, 1231-1238.
Vodoriz O.S., Tavrina T.V., Nikolaenko G.O., Rogachova O.I. (2020). Mechanical and thermoelectric properties of PbSe1-xTex semiconductor solid solutions (x = 0 – 0.04). Metallofiz. Noveishie Tekhnol., 42(4), 487-495 (in Ukrainian).
Tritt T.M. (2004). Thermal conductivity: theory, properties, and applications. New York: Kluwer Academic, Plenum Publishers.
Berman R. (1976). Thermal conduction in solids. Oxford: Clarendon Press.
Pei Y.-L., Liu Y. (2012). Electrical and thermal transport properties of Pb-based chalcogenides: PbTe, PbSe and PbS. J. Alloys and Compounds, 514, 40-44.
Tarasevich Yu.Yu. (2002). Percoliatsiia: teoriia, prilozheniia, algoritmy [Percolation: theory, applications, algoriythms]. Moscow: Editorial URSS [in Russian].
Stauffer D., Aharony A. (1992). Introduction to percolation theory. Wasington, DC: Taylor & Francis.
