Research progresses of lanthanide sulfides

Lanthanide sulfides are one kind of important functional materials with abundant structures and peculiar properties, which have wide applications in many fields, such as inorganic pigments, thermoelectric materials, optical materials and magnetic materials, etc al., and become one of the hot research topics in the world in recent years. In this review article, the synthesis methods and application research progresses of the lanthanide sulfides are summarized and commented, especially the structures, properties and applications of the g-Ln₂S₃. Several comments on the problems existed in the research of lanthanide sulfides had been given out, and the development trends in this field are proposed.