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  • Title: Impact of copper overpressure on the synthesis of hexagonal boron nitride atomic layers.
    Author: Bresnehan MS, Bhimanapati GR, Wang K, Snyder DW, Robinson JA.
    Journal: ACS Appl Mater Interfaces; 2014 Oct 08; 6(19):16755-62. PubMed ID: 25197772.
    Abstract:
    Hexagonal boron nitride (h-BN) atomic layers are synthesized on polycrystalline copper foils via a novel chemical vapor deposition (CVD) process that maintains a vapor-phase copper overpressure during growth. Compared to h-BN films grown without a copper overpressure, this process results in a >10× reduction of 3-dimensional BN fullerene-like surface features, a reduction of carbon and oxygen contamination of 65% and 62%, respectively, an increase in h-BN grain size of >2×, and an 89% increase in electrical breakdown strength.
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