Properties of Mechanochemically Synthesized Famatinite Cu3SbS4 Nanocrystals

In this study, we report the optoelectric and thermoelectric properties of famatinite Cu3SbS4 that was mechanochemically synthesized in a planetary mill from powder elements for 120 min an inert atmosphere. The tetragonal nanocrystalline with crystallite size 14 nm, as endorsed by Rietveld refinement. High-resolution transmission electron microscopy showed several crystallites range 20–50 nm. Raman spectroscopy proved purity chemical-state characterization performed X-ray photoelectron confirmed prepared sample pure. Cu1+, Sb5+, S2− oxidation states were approved. morphology homogeneity sample. photoresponse I–V measurements dark under illumination. photocurrent increase reached 20% compared to current at voltage 5 V. achieved results confirm can be applied suitable absorbent material solar cells. revealed figure merit ZT 0.05 600 K.