Nanocrystalline-graphene-tailored hexagonal boron nitride thin films.
نویسندگان
چکیده
Unintentionally formed nanocrystalline graphene (nc-G) can act as a useful seed for the large-area synthesis of a hexagonal boron nitride (h-BN) thin film with an atomically flat surface that is comparable to that of exfoliated single-crystal h-BN. A wafer-scale dielectric h-BN thin film was successfully synthesized on a bare sapphire substrate by assistance of nc-G, which prevented structural deformations in a chemical vapor deposition process. The growth mechanism of this nc-G-tailored h-BN thin film was systematically analyzed. This approach provides a novel method for preparing high-quality two-dimensional materials on a large surface.
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ورودعنوان ژورنال:
- Angewandte Chemie
دوره 53 43 شماره
صفحات -
تاریخ انتشار 2014