Visualizing defect dynamics by assembling the colloidal graphene lattice

Publication type:
Journal article
Metadata:
Autoren
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000957141600009&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1038/s41467-023-37222-4
eISSN
2041-1723
Externe Identifier
  • Clarivate Analytics Document Solution ID: A7UV2
  • PubMed Identifier: 36934102
Ausgabe der Veröffentlichung
1
Zeitschrift
NATURE COMMUNICATIONS
Artikelnummer
ARTN 1524
Datum der Veröffentlichung
2023
Status
Published
Titel
Visualizing defect dynamics by assembling the colloidal graphene lattice
Sub types
  • Article
Ausgabe der Zeitschrift
14

Data source: Web of Science (Lite)

Other metadata sources:
Abstract
<jats:title>Abstract</jats:title><jats:p>Graphene has been under intense scientific interest because of its remarkable optical, mechanical and electronic properties. Its honeycomb structure makes it an archetypical two-dimensional material exhibiting a photonic and phononic band gap with topologically protected states. Here, we assemble colloidal graphene, the analogue of atomic graphene using pseudo-trivalent patchy particles, allowing particle-scale insight into crystal growth and defect dynamics. We directly observe the formation and healing of common defects, like grain boundaries and vacancies using confocal microscopy. We identify a pentagonal defect motif that is kinetically favoured in the early stages of growth, and acts as seed for more extended defects in the later stages. We determine the conformational energy of the crystal from the bond saturation and bond angle distortions, and follow its evolution through the energy landscape upon defect rearrangement and healing. These direct observations reveal that the origins of the most common defects lie in the early stages of graphene assembly, where pentagons are kinetically favoured over the equilibrium hexagons of the honeycomb lattice, subsequently stabilized during further growth. Our results open the door to the assembly of complex 2D colloidal materials and investigation of their dynamical, mechanical and optical properties.</jats:p>
Autoren
DOI
10.1038/s41467-023-37222-4
eISSN
2041-1723
Ausgabe der Veröffentlichung
1
Zeitschrift
Nature Communications
Sprache
en
Artikelnummer
1524
Online publication date
2023
Status
Published online
Herausgeber
Springer Science and Business Media LLC
Herausgeber URL
http://dx.doi.org/10.1038/s41467-023-37222-4
Datum der Datenerfassung
2023
Titel
Visualizing defect dynamics by assembling the colloidal graphene lattice
Ausgabe der Zeitschrift
14

Data source: Crossref

Abstract
Graphene has been under intense scientific interest because of its remarkable optical, mechanical and electronic properties. Its honeycomb structure makes it an archetypical two-dimensional material exhibiting a photonic and phononic band gap with topologically protected states. Here, we assemble colloidal graphene, the analogue of atomic graphene using pseudo-trivalent patchy particles, allowing particle-scale insight into crystal growth and defect dynamics. We directly observe the formation and healing of common defects, like grain boundaries and vacancies using confocal microscopy. We identify a pentagonal defect motif that is kinetically favoured in the early stages of growth, and acts as seed for more extended defects in the later stages. We determine the conformational energy of the crystal from the bond saturation and bond angle distortions, and follow its evolution through the energy landscape upon defect rearrangement and healing. These direct observations reveal that the origins of the most common defects lie in the early stages of graphene assembly, where pentagons are kinetically favoured over the equilibrium hexagons of the honeycomb lattice, subsequently stabilized during further growth. Our results open the door to the assembly of complex 2D colloidal materials and investigation of their dynamical, mechanical and optical properties.
Addresses
  • Institute of Physics, University of Amsterdam, Amsterdam, the Netherlands.
Autoren
DOI
10.1038/s41467-023-37222-4
eISSN
2041-1723
Externe Identifier
  • PubMed Identifier: 36934102
  • PubMed Central ID: PMC10024684
Funding acknowledgements
  • National Science Foundation: DMR-1653465
  • Dutch Research Council (NWO): 680-47-615
  • National Science Foundation (NSF): DMR-1653465
Open access
true
ISSN
2041-1723
Ausgabe der Veröffentlichung
1
Zeitschrift
Nature communications
Sprache
eng
Medium
Electronic
Online publication date
2023
Open access status
Open Access
Paginierung
1524
Datum der Veröffentlichung
2023
Status
Published
Publisher licence
CC BY
Datum der Datenerfassung
2023
Titel
Visualizing defect dynamics by assembling the colloidal graphene lattice.
Sub types
  • research-article
  • Journal Article
Ausgabe der Zeitschrift
14

Files

https://www.nature.com/articles/s41467-023-37222-4.pdf https://europepmc.org/articles/PMC10024684?pdf=render

Data source: Europe PubMed Central

Abstract
Graphene has been under intense scientific interest because of its remarkable optical, mechanical and electronic properties. Its honeycomb structure makes it an archetypical two-dimensional material exhibiting a photonic and phononic band gap with topologically protected states. Here, we assemble colloidal graphene, the analogue of atomic graphene using pseudo-trivalent patchy particles, allowing particle-scale insight into crystal growth and defect dynamics. We directly observe the formation and healing of common defects, like grain boundaries and vacancies using confocal microscopy. We identify a pentagonal defect motif that is kinetically favoured in the early stages of growth, and acts as seed for more extended defects in the later stages. We determine the conformational energy of the crystal from the bond saturation and bond angle distortions, and follow its evolution through the energy landscape upon defect rearrangement and healing. These direct observations reveal that the origins of the most common defects lie in the early stages of graphene assembly, where pentagons are kinetically favoured over the equilibrium hexagons of the honeycomb lattice, subsequently stabilized during further growth. Our results open the door to the assembly of complex 2D colloidal materials and investigation of their dynamical, mechanical and optical properties.
Date of acceptance
2023
Autoren
Autoren-URL
https://www.ncbi.nlm.nih.gov/pubmed/36934102
DOI
10.1038/s41467-023-37222-4
eISSN
2041-1723
Externe Identifier
  • PubMed Central ID: PMC10024684
Funding acknowledgements
  • National Science Foundation (NSF): DMR-1653465
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek (Netherlands Organisation for Scientific Research): 680-47-615
Ausgabe der Veröffentlichung
1
Zeitschrift
Nat Commun
Sprache
eng
Country
England
Paginierung
1524
PII
10.1038/s41467-023-37222-4
Datum der Veröffentlichung
2023
Status
Published online
Datum, an dem der Datensatz öffentlich gemacht wurde
2023
Titel
Visualizing defect dynamics by assembling the colloidal graphene lattice.
Sub types
  • Journal Article
Ausgabe der Zeitschrift
14

Data source: PubMed

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