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- Title
Nanocrystalline-Graphene-Tailored Hexagonal Boron Nitride Thin Films.
- Authors
Lee, Kang Hyuck; Shin, Hyeon ‐ Jin; Kumar, Brijesh; Kim, Han Sol; Lee, Jinyeong; Bhatia, Ravi; Kim, Sang ‐ Hyeob; Lee, In ‐ Yeal; Lee, Hyo Sug; Kim, Gil ‐ Ho; Yoo, Ji ‐ Beom; Choi, Jae ‐ Young; Kim, Sang ‐ Woo
- Abstract
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 singlecrystal 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.
- Subjects
NANOCRYSTALS; GRAPHENE; BORON nitride synthesis; ELECTRIC properties of thin films; SAPPHIRES; CHEMICAL vapor deposition
- Publication
Angewandte Chemie, 2014, Vol 126, Issue 43, p11677
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201405762