title: Mechanochemical Solvent-Free Synthesis of Quaternary Semiconductor Cu-Fe-Sn-S Nanocrystals.
abstract: In this study, we demonstrate a one-pot mechanochemical synthesis of the nanocomposite composed of stannite Cu2FeSnS4and rhodostannite Cu2FeSn3S8nanocrystals using a planetary ball mill and elemental precursors (Cu, Fe, Sn, S). By this approach, unique nanostructures with interesting properties can be obtained. Methods of XRD, Raman spectroscopy, UV-Vis, nitrogen adsorption, SEM, EDX, HRTEM, STEM, and SQUID magnetometry were applied. Quaternary tetragonal phases of stannite and rhodostannite with crystallite sizes 18-19 nm were obtained. The dominant Raman peaks corresponding to the tetragonal stannite structure corresponding to A-symmetry optical modes were identified in the spectra. The bandgap 1.25 eV calculated from UV-Vis absorption spectrum is very well-acceptable value for the application of the synthesized material. The SEM micrographs illustrate the clusters of particles in micron and submicron range. The formation of agglomerates is also illustrated on the TEM micrographs. Weak ferromagnetic properties of the synthesized nanocrystals were documented.
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Peter
authors.initials: P
authors.lastname: Baláž
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Matej
authors.initials: M
authors.lastname: Baláž
authors.affiliation: Institute of Materials Science of Seville, CSIC-US, Seville, 41092, Spain.
authors.forename: María J
authors.initials: MJ
authors.lastname: Sayagués
authors.affiliation: Institute of Experimental Physics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Ivan
authors.initials: I
authors.lastname: Škorvánek
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Anna
authors.initials: A
authors.lastname: Zorkovská
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Erika
authors.initials: E
authors.lastname: Dutková
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Košice, 04001, Slovakia.
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Briančin
authors.affiliation: Institute of Electronics and Photonics, Slovak University of Technology, Bratislava, 81219, Slovakia.
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Kováč
authors.affiliation: Institute of Electronics and Photonics, Slovak University of Technology, Bratislava, 81219, Slovakia.
authors.forename: Jaroslav
authors.initials: J
authors.lastname: Kováč
authors.affiliation: Department of Sensor and Semiconductor Electronics, Ivan Franko National University of Lviv, 107, Tarnavskogo str., Lviv, 79017, Ukraine. yashpotyuk@gmail.com.|Center for Innovation and Transfer of Natural Sciences and Engineering Knowledge, Faculty of Mathematics and Natural Sciences, University of Rzeszow, 1, Pigonia str., Rzeszow, 35-958, Poland. yashpotyuk@gmail.com.
authors.forename: Yaroslav
authors.initials: Y
authors.lastname: Shpotyuk
keywords: Mechanochemistry; Quaternary sulfide; Solar cell; Stannite