Strain and Piezo-Doping Mismatch between Graphene Layers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00534508" target="_blank" >RIV/61388955:_____/20:00534508 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/11104/0312694" target="_blank" >http://hdl.handle.net/11104/0312694</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jpcc.0c01898" target="_blank" >10.1021/acs.jpcc.0c01898</a>
Alternative languages
Result language
angličtina
Original language name
Strain and Piezo-Doping Mismatch between Graphene Layers
Original language description
Modulation of electronic properties of bilayer materials through the strain and doping mismatch between layers opens new opportunities in 2D material straintronics. We present here a new approach allowing to generate asymmetric strain or doping between layers and a method to quantify it using a supported isotopically labeled bilayer graphene studied by in situ Raman spectroscopy. Strain differences up to similar to 0.1% between the two graphene layers have been obtained by applying pressures of up to 10 GPa with nonpolar solid environments. However, when immersed in a liquid polar environment, namely, a mixture of ethanol and methanol, a piezo-doping mismatch between layers is observed. This asymmetrical doping increases with pressure, leading to charge concentration differences between layers of the order of 10(13) cm(-2). Our approach thus allows disentangling strain and doping effects in high-pressure experiments evidencing the asymmetries of these phenomena and comforting isotopic bilayer graphene as a benchmark system for the study of asymmetric effects in devices or composite surfaces.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
—
Volume of the periodical
124
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
11193-11199
UT code for WoS article
000537428000044
EID of the result in the Scopus database
2-s2.0-85084566011