PT- and PD- Noble-Metal Dichalcogenides: Synthesis, Properties and Applications

Noble-metal dichalcogenides (NMDs) have attracted significant attention as new members of the 2D material family due to their layer-controllable metal-to-semiconductor transition. Both few-layer and bulk phases exhibit the topological properties of Dirac type-II semimetals [1]. Additionally, NMDs have demonstrated outstanding performance in opto-electronics and photonics as photo detectors, transistors, sensors, super-capacitors, in biomedicine, etc. [2]. Their unique chemistry-characterized by highly anisotropic structural features, low-energy differences between polymorphs, controllable phase changes, and catalytic properties sets them apart from other transition-metal dichalcogenides [2].