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Sökning: WFRF:(Ivanov Ivan Gueorguiev) > Manipulation of epi...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00004539naa a2200397 4500
001oai:DiVA.org:liu-170175
003SwePub
008200930s2020 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1701752 URI
0247 a https://doi.org/10.1016/j.matpr.2019.08.2132 DOI
040 a (SwePub)liu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a kon2 swepub-publicationtype
1001 a Shtepliuk, Ivanu Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)ivash69
2451 0a Manipulation of epitaxial graphene towards novel properties and applications
264 1b ELSEVIER,c 2020
338 a print2 rdacarrier
500 a Funding Agencies|VR grant [2018-04962, 302791]; SSF grants [SSF GMT14-0077, SSF RMA15-0024]; Angpanneforeningens Forskningsstiftelse [16-541]; Linkoping University ("LiU Career Contract") [Dnr-LiU-2015-01510]; Swedish research councilSwedish Research Council [VR-2015-04630]; Olle Engkvist foundation [SOEB 190-312]; Wenner-Gren foundations [UPD2018-0071]
520 a The integration of epitaxial graphene on 4H-SiC with different metals may allow tunability of electronic and optical properties of graphene, enabling novel high-performance devices. Here we present a Raman spectroscopy study on epitaxial graphene decorated with electrodeposited Pb and Li adatoms and with magnetron sputtered 5 nm-thick Ag nano-island films. We find that the presence of metals on the epitaxial graphene surface generates defects and induces n-type doping, which is evidenced by the observation of the defect related Raman modes (namely D, D and D + G) and systematic red-shift of the main characteristic modes of graphene. In-depth statistical analysis of the Raman data before and after metal deposition complemented by density functional theory (DFT) calculations allowed to link the interaction strength between the three selected metals and graphene with the metal-induced changes in the vibrational/electronic properties of graphene. Large-area uniform electron doping of epitaxial graphene and surface-enhanced Raman scattering (SERS) effect are reached by room temperature deposition of Ag nano-island films. Very promising results have been obtained from graphene subjected to electrochemical intercalation by Li, which can serve as prerequisites of the construction of Li batteries. The strong interaction between Li or Pb with graphene implies the possibility to exploit the epitaxial graphene as an efficient material for energy storage or for heavy metal sensing, while predominant van der Waals interaction between Ag and graphene favors the formation of extremely thin silver coatings towards two-dimensional metal systems. The present results give better understanding of the nature of epitaxial graphene response to metal deposition and can be useful to design high-performance energy storage devices, optical sensors and heavy metal detection systems. (C) 2019 Elsevier Ltd. All rights reserved.
650 7a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe
650 7a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng
653 a Epitaxial graphene; Metals; Lithium; Lead; Silver; Raman mapping
7001 a Ivanov, Ivan Gueorguievu Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)ivaiv28
7001 a Vagin, Mikhailu Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)mikva87
7001 a Khan, Ziyauddinu Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten4 aut0 (Swepub:liu)ziykh98
7001 a Iakimov, Tihomiru Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)tihia09
7001 a Pliatsikas, Nikolaosu Linköpings universitet,Nanodesign,Tekniska fakulteten4 aut0 (Swepub:liu)nikpl50
7001 a Sarakinos, Kostasu Linköpings universitet,Nanodesign,Tekniska fakulteten4 aut0 (Swepub:liu)kossa66
7001 a Giannazzo, F.u CNR, Italy4 aut
7001 a Yakimova, Rositsau Linköpings universitet,Halvledarmaterial,Tekniska fakulteten4 aut0 (Swepub:liu)rosia15
7102 a Linköpings universitetb Halvledarmaterial4 org
7730 t MATERIALS TODAY-PROCEEDINGSd : ELSEVIERg , s. 37-45q <37-45x 2214-7853
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170175
8564 8u https://doi.org/10.1016/j.matpr.2019.08.213

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