Abstract
Large-area hexagonal boron nitride (h-BN) can be grown on polycrystalline metallic substrates via chemical vapor deposition (CVD), but the impact of local inhomogeneities on the electrical properties of the h-BN and their effect in electronic devices is unknown. Conductive atomic force microscopy (CAFM) and probe station characterization show that the tunneling current across the h-BN stack fluctuates up to 3 orders of magnitude from one substrate (Pt) grain to another. Interestingly, the variability in the tunneling current across the h-BN within the same substrate grain is very low, which may enable the use of CVD-grown h-BN in ultra scaled technologies.
Original language | English (US) |
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Pages (from-to) | 39895-39900 |
Number of pages | 6 |
Journal | ACS Applied Materials and Interfaces |
Volume | 9 |
Issue number | 46 |
DOIs | |
State | Published - Nov 22 2017 |
Externally published | Yes |
ASJC Scopus subject areas
- General Materials Science