Temperature and face dependent copper?graphene interactions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F15%3A00446587" target="_blank" >RIV/61388955:_____/15:00446587 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.carbon.2015.06.002" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2015.06.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.carbon.2015.06.002" target="_blank" >10.1016/j.carbon.2015.06.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Temperature and face dependent copper?graphene interactions

Popis výsledku v původním jazyce

The interaction between graphene and metals represents an important issue for the large-area preparation of graphene, graphene transfer and the contact quality in graphene devices. We demonstrate a simple method for estimating and manipulating the levelof interaction between graphene and copper single crystals through heat treatment, at temperatures from 298 K to 1073 K. We performed in-situ Raman spectroscopy showing Cu face-specific behavior of the overlying graphene during the heat treatment. On Cu(1 1 1) the interaction is consistent with theoretical predictions and remains stable, whereas on Cu(1 0 0) and Cu(1 1 0), the initially very weak interaction and charge transfer can be tuned by heating. Our results also suggest that graphene grown on Cu(1 0 0) and Cu(1 1 0) is detached from the copper substrate, thereby possibly enabling an easier graphene transfer process as compared to Cu(1 1 1).

Název v anglickém jazyce

Temperature and face dependent copper?graphene interactions

Popis výsledku anglicky

The interaction between graphene and metals represents an important issue for the large-area preparation of graphene, graphene transfer and the contact quality in graphene devices. We demonstrate a simple method for estimating and manipulating the levelof interaction between graphene and copper single crystals through heat treatment, at temperatures from 298 K to 1073 K. We performed in-situ Raman spectroscopy showing Cu face-specific behavior of the overlying graphene during the heat treatment. On Cu(1 1 1) the interaction is consistent with theoretical predictions and remains stable, whereas on Cu(1 0 0) and Cu(1 1 0), the initially very weak interaction and charge transfer can be tuned by heating. Our results also suggest that graphene grown on Cu(1 0 0) and Cu(1 1 0) is detached from the copper substrate, thereby possibly enabling an easier graphene transfer process as compared to Cu(1 1 1).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/LL1301" target="_blank" >LL1301: Od grafenových hybridních nanostruktur k ekologické elektronice</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Carbon

ISSN

0008-6223

e-ISSN

—

Svazek periodika

93

Číslo periodika v rámci svazku

NOV 2015

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

793-799

Kód UT WoS článku

000360292100080

EID výsledku v databázi Scopus

2-s2.0-84938613977