Abstract 2D metallic vanadium dichalcogenides (VX 2 ) have renewed interest due to their unique physical properties and potential applications as high‐performance functional nanomaterials. Herein, the synthesis and phase transitions of 2D metallic VX 2 are investigated. The synthesis is done by chemical vapor deposition using hexagonal boron nitride and mica as substrates. High‐quality VX 2 flakes with sub‐10 nm thickness are obtained and characterized by transmission electron microscopy. Temperature‐dependent Raman characterization between 330 and 5 K is conducted and remarkable changes of Raman modes at around 150 K for VS 2 flakes and 110 K for VSe 2 flakes are revealed, indicating charge density wave phase transitions. Temperature‐dependent electrical measurements have also supported the phase transitions observed in Raman characterization.
No takes yet. Share an insight, caveat, or question.
Hossain et al. (2018) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: