Partner: G. Soboń

Wroclaw University of Science and Technology (PL)

Recent publications
1.Zybała R., Mars K., Mikuła A., Bogusławski J., Soboń G., Sotor J., Schmidt M., Kaszyca K., Chmielewski M., Ciupiński L., Pietrzak K., Synthesis and characterization of antimony telluride for thermoelectric and optoelectronic applications, ARCHIVES OF METALLURGY AND MATERIALS, ISSN: 1733-3490, DOI: 10.1515/amm-2017-0155, Vol.62, No.2B, pp.1067-1070, 2017
Abstract:

Antimony telluride (Sb2Te3) is an intermetallic compound crystallizing in a hexagonal lattice with R-3m space group. It creates a c lose packed structure of an ABCABC type. As intrinsic semiconductor characterized by excellent electrical properties, Sb2Te3 is widely used as a low-temperature thermoelectric material. At the same time, due to unusual properties (strictly connected with the structure), antimony telluride exhibits nonlinear optical properties, including saturable absorption. Nanostructurization, elemental doping and possibilities of synthesis Sb2Te3 in various forms (polycrystalline, single crystal or thin film) are the most promising methods for improving thermoelectric properties of Sb2Te3.Applications of Sb2Te3 in optical devices (e.g. nonlinear modulator, in particular saturable absorbers for ultrafast lasers) are also interesting. The antimony telluride in form of bulk polycrystals and layers for thermoelectric and optoelectronic applications respectively were used. For optical applications thin layers of the material were formed and studied. Synthesis and structural characterization of Sb2Te3 were also presented here. The anisotropy (packed structure) and its influence on thermoelectric properties have been performed. Furthermore, preparation and characterization of Sb2Te3 thin films for optical uses have been also made

Keywords:

antimony telluride, thermoelectric materials, thin films, PVD magnetron sputtering, topological insulator

Affiliations:
Zybała R.-Warsaw University of Technology (PL)
Mars K.-AGH University of Science and Technology (PL)
Mikuła A.-AGH University of Science and Technology (PL)
Bogusławski J.-Wroclaw University of Science and Technology (PL)
Soboń G.-Wroclaw University of Science and Technology (PL)
Sotor J.-Wroclaw University of Science and Technology (PL)
Schmidt M.-Institute of Electronic Materials Technology (PL)
Kaszyca K.-Lukasiewicz Institute of Microelectronics and Photonics (PL)
Chmielewski M.-Institute of Electronic Materials Technology (PL)
Ciupiński L.-Warsaw University of Technology (PL)
Pietrzak K.-other affiliation