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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Hexagonal boron nitride (h-BN) is a two dimensional (2D) layered insulatorwith superior dielectric performance that offers excellent interaction withother 2D materials (e.g. graphene, MoS2). Large-area h-BN can be readily grownon metallic substrates via chemical vapor deposition (CVD), but the impact oflocal inhomogeneities on the electrical properties of the h-BN and their effectin electronic devices is unknown. Here it is shown that the electricalproperties of h-BN stacks grown on polycrystalline Pt vary a lot depending onthe crystalline orientation of the Pt grain, but within the same grain theelectrical properties of the h-BN are very homogeneous. The reason is that thethickness of the CVD-grown h-BN stack is different on each Pt grain. Conductiveatomic force microscopy (CAFM) maps show that the tunneling current across theh-BN stack fluctuates up to 3 orders of magnitude from one Pt grain to another.However, probe station experiments reveal that the variability of electronicdevices fabricated within the same Pt grain is surprisingly small. Ascutting-edge electronic devices are ultra-scaled, and as the size of themetallic substrate grains can easily exceed 100 {\mu}m (in diameter), CVD-grownh-BN stacks may be useful to fabricate electronic devices with low variability.

Electrical homogeneity of large-area chemical vapor deposited multilayer hexagonal boron nitride sheets