High-throughput dry transfer and excitonic properties of twisted bilayers based on CVD-grown transition metal dichalcogenides.

ABSTRACT: van der Waals (vdW) layered materials have attracted much attention because their physical properties can be controlled by varying the twist angle and layer composition. However, such twisted vdW assemblies are often prepared using mechanically exfoliated monolayer flakes with unintended shapes through a time-consuming search for such materials. Here, we report the rapid and dry fabrication of twisted multilayers using chemical vapor deposition (CVD) grown transition metal chalcogenide (TMDC) monolayers. By improving the adhesion of an acrylic resin stamp to the monolayers, the single crystals of various TMDC monolayers with desired grain size and density on a SiO₂/Si substrate can be efficiently picked up. The present dry transfer process demonstrates the one-step fabrication o

SUBMITTER: Naito H 

PROVIDER: S-EPMC10496764 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature