Rational design and observation of the tight interface between graphene and ligand protected nanocrystals
Year: 2018
Type: article
Abstract: Heterostructures constructed of graphene and colloidal nanocrystals provide a unique way to exploit the coupled physical properties of the two functional building blocks. Studying the interface structure between the two constituent materials is important to understand the formation mechanism and the resulting physical and chemical properties. Along with ab initio calculations, we elucidate that the bending rigidity and the strong van der Waals interaction of graphene to the metal surface guide the formation of a tight and conformal interface. Using theoretical foundations, we construct colloidal nanocrystal-graphene heterostructures with controlled interfacial structures and directly investigate the cross-sectional structures of them at high resolution by using aberration-corrected transmission electron microscopy. The experimental method and observations we present here will link the empirical methods for the formation of nanocrystal-graphene heterostructures to the mechanistic understanding of their properties.
DOI: 10.1039/c8cp05844j
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funders: U.S. Department of Energy, Harvard University, National Research Foundation, Seoul National University, Ministry of Trade, Industry and Energy, Korea Institute of Science and Technology Information, National Research Foundation of Korea, Ministry of Education, Science and Technology, Ministry of Science and ICT, South Korea, Korea Semiconductor Research Consortium, Lawrence Berkeley National Laboratory
OpenAlex ID: W2901515408