Journal
APPLIED PHYSICS EXPRESS
Volume 14, Issue 8, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.35848/1882-0786/ac0ece
Keywords
graphene; first-principles calculation; CVD growth
Categories
Funding
- Ministry of Education, Science, Sports and Culture of Japan [20H05670, 21H01768]
- Grants-in-Aid for Scientific Research [20H05670, 21H01768] Funding Source: KAKEN
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The role of edge termination in the growth direction selectivity of graphene heterostructures with hexagonal boron nitride has been theoretically studied. Different edge terminations lead to lateral and vertical growth of the heterostructures. The mechanisms behind these different edge terminations are discussed based on H adsorption kinetics.
The role of edge termination is theoretically studied for the growth direction selectivity in chemical vapor deposition of graphene heterostructures with hexagonal boron nitride. It is found that the graphene island with hydrogen-free edge and the hexagonal boron nitride island with hydrogen-terminated edge induces the lateral and the vertical growth of the heterostructures we have experimentally observed. The mechanism of the different edge terminations is also discussed based on the H adsorption kinetics.
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