English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The success of isolating small flakes of atomically thin layers throughmechanical exfoliation has triggered enormous research interest in graphene andother two-dimensional materials. For device applications, however, controlledlarge-area synthesis of highly crystalline monolayers with a low density ofelectronically active defects is imperative. Here, we demonstrate theelectrical imaging of dendritic ad-layers and grain boundaries in monolayermolybdenum disulfide (MoS2) grown by vapor transport technique using microwaveimpedance microscopy. The micrometer-sized precipitates in our films, whichappear as a second layer of MoS2 in conventional height and opticalmeasurements, show 2 orders of magnitude higher conductivity than that of thesingle layer. The zigzag grain boundaries, on the other hand, are shown to bemore resistive than the crystalline grains, consistent with previous studies.Our ability to map the local electrical properties in a rapid andnondestructive manner is highly desirable for optimizing the growth process oflarge-scale MoS2 atomic layers.

Mesoscale Imperfections in MoS2 Atomic Layers Grown by Vapor Transport Technique