2D atomic crystal molecular superlattices by soft plasma intercalation.

ABSTRACT: Two-dimensional (2D) atomic crystal superlattices integrate diverse 2D layered materials enabling adjustable electronic and optical properties. However, tunability of the interlayer gap and interactions remain challenging. Here we report a solution based on soft oxygen plasma intercalation. 2D atomic crystal molecular superlattices (ACMSs) are produced by intercalating O₂⁺ ions into the interlayer space using the plasma electric field. Stable molecular oxygen layer is formed by van der Waals interactions with adjacent transition metal dichalcogenide (TMD) monolayers. The resulting interlayer gap expansion can effectively isolate TMD monolayers and impart exotic properties to homo-(MoS₂[O₂]_x) and hetero-(MoS₂[O₂]

SUBMITTER: Zhang L 

PROVIDER: S-EPMC7686334 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature