Temperature-induced evolution of strain and doping in an isotopically labeled two-dimensional graphene-C-70 fullerene peapod
Result description
A two-dimensional peapod (2D-peapod) was engineered by sandwiching C-70 fullerenes between two isotopically labeled graphene single-layers. Raman spectral mapping was used to investigate in-situ the evolution of strain and doping associated with topographic changes of the graphene layers in the temperature range 10-300 K. The isotope labeling of the top layer with C-13 allowed us following the strain and doping in the bottom and top layer independently. The global behavior of the temperature dependence of the C-12 (bottom) and C-13 (top) graphene layer does not significantly deviates from that of an isotopically labeled graphene double layer. However, the presence of the C-70 fullerenes give rise to the creation of specific networks of wrinkles in the top graphene layer, which significantly evolve with decreasing temperature. We propose that the C-70 fullerenes adhered to the graphene layers act locally as a mutual mechanical coupler, and govern the local reconstruction of the topography of the 2D-peapod.
Keywords
two-dimensional peapodRaman spectroscopyisotope labellingtopography
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/68378271:_____/17:00476777 RIV/00216208:11320/17:10362182
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Temperature-induced evolution of strain and doping in an isotopically labeled two-dimensional graphene-C-70 fullerene peapod
Original language description
A two-dimensional peapod (2D-peapod) was engineered by sandwiching C-70 fullerenes between two isotopically labeled graphene single-layers. Raman spectral mapping was used to investigate in-situ the evolution of strain and doping associated with topographic changes of the graphene layers in the temperature range 10-300 K. The isotope labeling of the top layer with C-13 allowed us following the strain and doping in the bottom and top layer independently. The global behavior of the temperature dependence of the C-12 (bottom) and C-13 (top) graphene layer does not significantly deviates from that of an isotopically labeled graphene double layer. However, the presence of the C-70 fullerenes give rise to the creation of specific networks of wrinkles in the top graphene layer, which significantly evolve with decreasing temperature. We propose that the C-70 fullerenes adhered to the graphene layers act locally as a mutual mechanical coupler, and govern the local reconstruction of the topography of the 2D-peapod.
Czech name
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Czech description
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Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Diamond and Related Materials
ISSN
0925-9635
e-ISSN
—
Volume of the periodical
75
Issue of the periodical within the volume
May
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
140-145
UT code for WoS article
000403133800022
EID of the result in the Scopus database
2-s2.0-85015430844
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Physical chemistry
Year of implementation
2017