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Crystalline Sb2Se3 nanoparticles were prepared by reaction of SbCl3 with (Et3Si)2Se in the presence of oleylamine (OA) in the ionic liquids [C4C1Im]Cl, whereas the reaction of (Et3Si)2Se with [C4C1Im]3[BiCl6] 1, which was obtained from the reaction of BiCl3 with [C4C1Im]Cl and structurally characterized by single crystal X-ray diffraction, yielded Bi-rich Bi2Se3 nanoparticles. In contrast, the reaction of the reactive IL [C4C1Im]3[Bi3I12] with (Et3Si)2Se in the presence of oleylamine (OA) in [C4C1Im]I gava phase-pure Bi2Se3 nanoparticles. The chemical composition of the nanoparticles was investigated by EDX, while possible surface contaminations were studied by XPS and IR spectroscopy. The morphology of the nanoparticles was studied by SEM and TEM.

The low‐temperature metal‐organic (MO)CVD of Sb2Te3 films is achieved by the use of the single‐source precursor (Et2Sb)2Te, 1. The role of the substrate temperature on the deposition rate and the composition of the resulting film is described. The resulting Sb2Te3 films are characterized by X‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X‐ray (EDX) and Auger spectroscopies. Moreover, the Seebeck coefficient of the Sb2Te3 film deposited at 200 °C is determined, and the value of 160 µV K−1 demonstrates the high quality and low carrier density of the film.