dc.citation.conferencePlace |
CC |
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dc.citation.title |
8th A3 Symposium on Emerging Materials |
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dc.contributor.author |
Shin, Hyeon Suk |
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dc.date.accessioned |
2023-12-19T18:07:12Z |
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dc.date.available |
2023-12-19T18:07:12Z |
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dc.date.created |
2018-01-15 |
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dc.date.issued |
2017-10-26 |
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dc.description.abstract |
Large-scale growth of high-quality hexagonal boron nitride (h-BN) has been a challenge in two-dimensional (2D)-material-based electronicsbecause 2D insulating dielectric layers are required as dielectric substrates and/or encapsulation layers in electronic devices with graphene or transition metal dichalcogenides. In this presentation, I demonstratewafer-scale and wrinkle-free epitaxial growth of multi-layer h-BN on a sapphire substrate by using high-temperature and low-pressure chemical vapor deposition. Microscopic and spectroscopic investigations and theoretical calculations reveal that synthesized h-BN has a single rotational orientation with Bernal stacking order. A facile method for transferring h-BN onto other target substrates weredeveloped, which provides the opportunity for using h-BN as a substrate in practical electronic circuits. A graphene field effect transistor fabricated on our h-BN sheets shows highly improved carrier mobility, because the ultra-flatness of the h-BN surface can reduce the substrate-induced degradation of the carrier mobility of 2D materials.Afterwards, I show some potential applications of h-BN for a shell layer capping Au nanoparticles in surface-enhance Raman scattering, an encapsulation (or passivation) layer to protect unstable transition metal dichalcogenides (TMDs), and a proton exchange membrane to replace the Nafion film in a polymer electrolyte membrane (PEM) fuel cell. |
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dc.identifier.bibliographicCitation |
8th A3 Symposium on Emerging Materials |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/38753 |
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dc.language |
영어 |
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dc.publisher |
8th A3 Symposium on Emerging Materials |
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dc.title |
Large-Area Growth of High Quality Hexagonal Boron Nitride Chemical Vapor Deposition and Its Applications |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2017-10-25 |
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