Abstract
Antimony sulfoiodide (SbSI) is a highly efficient energy conversion piezoelectric material. We obtained SbSI doped with tin (II) ions according to the formula Sb[Formula: see text]SnxSI[Formula: see text] ([Formula: see text]–0.1). This heterovalent doping has been performed by the novel method of synthesis in an aqueous solution. The introduction of tin cations leads to a material Curie point increase of more than 10[Formula: see text]K. The samples containing 5[Formula: see text]mol.% of the dopant possess the best piezoelectric properties: piezomodule [Formula: see text][Formula: see text]pC/N, dielectric constant at a frequency of 1[Formula: see text]kHz — 1758, dielectric loss tangent — 0.054, and piezosensitivity — 50[Formula: see text]mV[Formula: see text]×[Formula: see text]m/N. Thus, tin-doped SbSI is a promising material for highly efficient electromechanical transducers and sensors.
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