SERS of Isotopically Labeled C-12/C-13 Graphene Bilayer-Gold Nanostructured Film Hybrids: Graphene Layer as Spacer and SERS Probe

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00482703" target="_blank" >RIV/61388955:_____/17:00482703 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/17:00482703 RIV/00216208:11310/17:10362181 RIV/00216208:11320/17:10362181

Result on the web

<a href="http://dx.doi.org/10.1021/acs.jpcc.7b02585" target="_blank" >http://dx.doi.org/10.1021/acs.jpcc.7b02585</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcc.7b02585" target="_blank" >10.1021/acs.jpcc.7b02585</a>

Result language

angličtina

Original language name

SERS of Isotopically Labeled C-12/C-13 Graphene Bilayer-Gold Nanostructured Film Hybrids: Graphene Layer as Spacer and SERS Probe

Original language description

Single layer graphene (SLG) is envisaged to improve significantly the substrates for surface-enhanced Raman scattering of planar aromatic molecules as it can ensure a more even enhancement at different places of the substrate. For this purpose, the role of SLG as a spacer in such SERS platforms has to be addressed. Here, we report preparation and Raman spectral probing of hybrid systems constituted by 13 C/ 12 C bilayer graphene covered by 15 nm thick nanostructured gold. Hybrids with both the 13 C over 12 C layers and in the flipped geometry, and with both the turbostratic and the A-B stacked order have been investigated, and qualitative as well as quantitative information about the enhancement experienced by phonons of the individual graphene layers by the electromagnetic mechanism (EM) of SERS were obtained. In hybrids system under study, the top layer of the isotopically labeled bilayer graphene represents the SLG spacer, while the bottom layer mimics a monolayer of target planar aromatic molecules. Importantly, both the calculation and the experiment based chiefly on comparison of the relative intensity ratio of the clearly distinguished 13 C layer and 12 C layer G mode bands jointly indicate that the enhancement of Raman scattering of the molecular monolayer on SLG spacer by the EM mechanism of SERS will be only 0.7 times lower than that of a monolayer located directly on the nanostructured Au surface.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10403 - Physical chemistry

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)

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

—

Volume of the periodical

121

Issue of the periodical within the volume

21

Country of publishing house

US - UNITED STATES

Number of pages

7

Pages from-to

11680-11686

UT code for WoS article

000402775200075

EID of the result in the Scopus database

2-s2.0-85020639147