Semiconductors

Thermal expansion of Ag$_{x}$Pb$_{1-x}$S limited semiconductor solid solutions

S. I. Sadovnikov

Institute of Solid State Chemistry, Urals Branch of the Russian Academy of Sciences, Ekaterinburg

Abstract: Single-phase powders of Ag$_{x}$Pb$_{1-x}$S cubic solid solutions with a maximum relative silver content up to $x$ = 0.12 were synthesized from aqueous solutions of lead acetate and silver nitrate in the presence of a sulfidizing agent, complexing and stabilizing agents. Thermal expansion of synthesized semiconductor solid solutions Ag$_{x}$Pb$_{1-x}$S was measured for the first time by dilatometry in the temperature range of 295–580 K. It is shown that the replacement of lead atoms by silver atoms in Ag$_{x}$Pb$_{1-x}$S leads to a small decrease in the thermal expansion coefficient associated with a change in the anharmonicity of atomic oscillations.

Received: 02.07.2018
Revised: 21.12.2018
Accepted: 27.12.2018

DOI: 10.21883/FTT.2019.06.47679.182

 English version: Physics of the Solid State, 2019, 61:6, 982–986

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