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Title: Rational design and observation of the tight interface between graphene and ligand protected nanocrystals

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. Furthermore 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.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [2];  [4]; ORCiD logo [5]
  1. Institute for Basic Science (IBS), Seoul (Republic of Korea)
  2. Konkuk Univ., Seoul (Republic of Korea)
  3. Ulsan National Institute Science and Technology (UNIST), Ulsan (Republic of Korea)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Institute for Basic Science (IBS), Seoul (Republic of Korea); Seoul National Univ., Seoul (Republic of Korea)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
OSTI Identifier:
1506382
Alternate Identifier(s):
OSTI ID: 1484834
Grant/Contract Number:  
AC02-05CH11231; KC22ZH
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Chemistry Chemical Physics. PCCP (Print)
Additional Journal Information:
Journal Volume: 21; Journal Issue: 1; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Kim, Byung Hyo, Bae, Hyeonhu, Park, Hyesung, Lee, Hoonkyung, Ercius, Peter, and Park, Jungwon. Rational design and observation of the tight interface between graphene and ligand protected nanocrystals. United States: N. p., 2018. Web. doi:10.1039/c8cp05844j.
Kim, Byung Hyo, Bae, Hyeonhu, Park, Hyesung, Lee, Hoonkyung, Ercius, Peter, & Park, Jungwon. Rational design and observation of the tight interface between graphene and ligand protected nanocrystals. United States. doi:10.1039/c8cp05844j.
Kim, Byung Hyo, Bae, Hyeonhu, Park, Hyesung, Lee, Hoonkyung, Ercius, Peter, and Park, Jungwon. Thu . "Rational design and observation of the tight interface between graphene and ligand protected nanocrystals". United States. doi:10.1039/c8cp05844j. https://www.osti.gov/servlets/purl/1506382.
@article{osti_1506382,
title = {Rational design and observation of the tight interface between graphene and ligand protected nanocrystals},
author = {Kim, Byung Hyo and Bae, Hyeonhu and Park, Hyesung and Lee, Hoonkyung and Ercius, Peter and Park, Jungwon},
abstractNote = {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. Furthermore 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},
journal = {Physical Chemistry Chemical Physics. PCCP (Print)},
issn = {1463-9076},
number = 1,
volume = 21,
place = {United States},
year = {2018},
month = {11}
}

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