Stress and charge transfer in uniaxially strained CVD graphene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F16%3A00460797" target="_blank" >RIV/61388955:_____/16:00460797 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/16:10331615 RIV/00216305:26220/16:PU120170
Result on the web
<a href="http://dx.doi.org/10.1002/pssb.201600233" target="_blank" >http://dx.doi.org/10.1002/pssb.201600233</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pssb.201600233" target="_blank" >10.1002/pssb.201600233</a>
Alternative languages
Result language
angličtina
Original language name
Stress and charge transfer in uniaxially strained CVD graphene
Original language description
Mechanical properties of graphene prepared by chemical vapour deposition (CVD) are not easily comparable to the properties of nearly perfect graphene prepared by mechanical cleavage. In this work, we attempt to investigate the mechanical performance of CVD graphene (simply supported or embedded in polymer matrix), transferred by two different techniques, under uniaxial loading with simultaneous in situ monitoring by Raman microspectroscopy. The level of charge transfer doping and strain is assessed using the vector analysis modified for uniaxial strain. The strain distribution across the samples varies significantly, owing to the growth and transfer process, which induces wrinkles and faults in the CVD graphene. In simply supported specimens, the stress transfer efficiency is generally very low and the changes in Raman spectra are dominated by variations in the charge transfer originating from the realignment of the domains on the substrate upon the application of strain. In contrast, samples covered with an additional polymer layer exhibit an improved stress transfer efficiency, and the alterations of charge doping levels are negligible. In fully embedded specimens, the variations in stress transfer efficiencies are caused by the size of the effective graphene domains defined by cracks, folds and/or wrinkles.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica Status Solidi B-Basic Solid State Physics
ISSN
0370-1972
e-ISSN
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Volume of the periodical
253
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
7
Pages from-to
2355-2361
UT code for WoS article
000390339000011
EID of the result in the Scopus database
2-s2.0-84978426232