Preparation and some electrophysical properties of the compound Sn(Pb)SbBiS4 and solid solutions based on SnSbBiS4

When studying the ternary system Sb2S3-Sn(Pb)S-Bi2S3, it was established that in the Sn(Pb)Sb2S4-Sn(Pb)Bi2S4 sections a quaternary compound with the composition SnSbBiS4 and PbSbBiS4 is formed. And in the SnSbBiS4-SnS system, solid solutions are formed based on the initial components. Their electrical conductivity and temperature dependence of thermoelectric properties have been studied over a wide range. The results of measuring the temperature dependence of electrical conductivity, the samples have a semiconductor conductivity throughout the entire temperature range. It was established that all samples are n-type semiconductors. The compound SnSbBiS4 and PbSbBiS4 have high photosensitivity in the IR region of the spectrum. At operating voltage 10-20 V, Rd / Rl 1.1⸱103÷1.4⸱103.