Recent advances of substitutionally doped tin dichalcogenides

Abstract

Layered two-dimensional (2D) tin dichalcogenides (SnS₂ and SnSe₂) have attracted considerable attention owing to their environmental friendliness, semiconducting character, and outstanding electrical and optoelectronic properties. The electronic properties of 2D tin dichalcogenides can be effectively tuned by substitutional doping to improve their performance and extend their applications. Here, we review the recent advances in metal and non-metal substitutional doping of tin dichalcogenides and the effect of doping on electrical, optoelectronic, and thermoelectric applications. Moreover, the challenges and outlook of substitutional doping of tin dichalcogenides are also discussed.