Modification of Transition Metal Dichalcogenide Interlayer Interaction and Charge Transfer Through Transient Photoexcitation and Lithiation.

ABSTRACT: The interlayer interaction mechanisms and strengths prevailing in the van der Waals gap of transition metal dichalcogenides and 2D materials in general critically influence their inherent properties and charge transfer efficiency. Through femtosecond photoexcitation, the phase-dependent interlayer interaction strength in prototypical charge density wave- coupled 1T-TaS₂ and van der Waals- coupled 2H-MoS₂, as well as 1T-MoS₂ is transiently modified and compared to 1T-Li_xMoS₂ reached by lithium intercalation. Sub-femtosecond directional charge transfer times are detected through sulphur L₁L_2,3M_1,2,3 core-hole clock spectroscopy. In 1T-TaS₂, all-optical modification of the charge density wave co

SUBMITTER: Haverkamp R 

PROVIDER: S-EPMC12674105 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature