Graphene field effect transistor as a probe of electronic structure and charge transfer at organic molecule?graphene interfaces

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00438498" target="_blank" >RIV/61388955:_____/15:00438498 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1039/c4nr05390g" target="_blank" >http://dx.doi.org/10.1039/c4nr05390g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c4nr05390g" target="_blank" >10.1039/c4nr05390g</a>

Result language

angličtina

Original language name

Graphene field effect transistor as a probe of electronic structure and charge transfer at organic molecule?graphene interfaces

Original language description

The electronic structure of physisorbed molecules containing aromatic nitrogen heterocycles (triazine and melamine) on graphene is studied using a combination of electronic transport, X-ray photoemission spectroscopy and density functional theory calculations. The interfacial electronic structure and charge transfer of weakly coupled molecules on graphene is found to be governed by work function differences, molecular dipole moments and polarization effects. We demonstrate that molecular depolarizationplays a significant role in these charge transfer mechanisms even at submonolayer coverage, particularly for molecules which possess strong dipoles. Electronic transport measurements show a reduction of graphene conductivity and charge carrier mobility upon the adsorption of the physisorbed molecules. This effect is attributed to the formation of additional electron scattering sites in graphene by the molecules and local molecular electric fields. Our results show that adsorbed molecules

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

<a href="/en/project/LL1301" target="_blank" >LL1301: From Graphene Hybrid Nanostructures to Green Electronics</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nanoscale

ISSN

2040-3364

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1471-1478

UT code for WoS article

000347374600025

EID of the result in the Scopus database

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