Temperature-induced evolution of strain and doping in an isotopically labeled two-dimensional graphene-C-70 fullerene peapod

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F17%3A00476777" target="_blank" >RIV/61388955:_____/17:00476777 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/17:00476777 RIV/00216208:11320/17:10362182

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.diamond.2017.03.001" target="_blank" >http://dx.doi.org/10.1016/j.diamond.2017.03.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.diamond.2017.03.001" target="_blank" >10.1016/j.diamond.2017.03.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature-induced evolution of strain and doping in an isotopically labeled two-dimensional graphene-C-70 fullerene peapod

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Temperature-induced evolution of strain and doping in an isotopically labeled two-dimensional graphene-C-70 fullerene peapod

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

140-145

Kód UT WoS článku

000403133800022

EID výsledku v databázi Scopus

2-s2.0-85015430844