Synthesis and characterization of flower-like quaternary chalcogenide Cu₂FeSnS₄ microspheres with a mixed solvent strategy

摘要

Self-assembly uniform flower-liked Cu 2 FeSnS 4 (CFTS) microspheres have been successfully synthesized b y a facial and promisingly mixed solvent method for the first time. In this study, we adopted ethylene glycol (EG) and deionized water (DIW) as the mixed solvent and controlled the specific volume ratio of these two solvent. Besides, the addition of polyvinyl pyrrolidone (PVP) for the formation of flower-like CFTS microspheres also play a crucial role. The as-obtained products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and transmission election microsco py (TEM).