000079650 001__ 79650
000079650 005__ 20200117221656.0
000079650 0247_ $$2doi$$a10.1039/c8nr02347f
000079650 0248_ $$2sideral$$a107730
000079650 037__ $$aART-2018-107730
000079650 041__ $$aeng
000079650 100__ $$aMoneo, Andrea
000079650 245__ $$aTowards molecular electronic devices based on ‘all-carbon'' wires
000079650 260__ $$c2018
000079650 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079650 5203_ $$aNascent molecular electronic devices based on linear ‘all-carbon'' wires attached to gold electrodes through robust and reliable C-Au contacts are prepared via efficient in situ sequential cleavage of trimethylsilyl end groups from an oligoyne, Me3Si-(CC)4-SiMe3 (1). In the first stage of the fabrication process, removal of one trimethylsilyl (TMS) group in the presence of a gold substrate, which ultimately serves as the bottom electrode, using a stoichiometric fluoride-driven process gives a highly-ordered monolayer, AuCCCCCCCCSiMe3 (AuC8SiMe3). In the second stage, treatment of AuC8SiMe3 with excess fluoride results in removal of the remaining TMS protecting group to give a modified monolayer AuCCCCCCCCH (AuC8H). The reactive terminal CC-H moiety in AuC8H can be modified by ‘click'' reactions with (azidomethyl)ferrocene (N3CH2Fc) to introduce a redox probe, to give AuC6C2N3HCH2Fc. Alternatively, incubation of the modified gold substrate supported monolayer AuC8H in a solution of gold nanoparticles (GNPs), results in covalent attachment of GNPs on top of the film via a second alkynyl carbon-Au s-bond, to give structures AuC8GNP in which the monolayer of linear, ‘all-carbon'' C8 chains is sandwiched between two macroscopic gold contacts. The covalent carbon-surface bond as well as the covalent attachment of the metal particles to the monolayer by cleavage of the alkyne C-H bond is confirmed by surface- enhanced Raman scattering (SERS). The integrity of the carbon chain in both AuC6C2N3HCH2Fc systems and after formation of the gold top-contact electrode in AuC8GNP is demonstrated through electrochemical methods. The electrical properties of these nascent metal-monolayer-metal devices AuC8GNP featuring ‘all-carbon'' molecular wires were characterised by sigmoidal I-V curves, indicative of well-behaved junctions free of short circuits.
000079650 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E54$$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-78257-R$$9info:eu-repo/grantAgreement/ES/UZ/JIUZ-2016-CIE-04
000079650 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000079650 590__ $$a6.97$$b2018
000079650 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b41 / 293 = 0.14$$c2018$$dQ1$$eT1
000079650 591__ $$aNANOSCIENCE & NANOTECHNOLOGY$$b20 / 94 = 0.213$$c2018$$dQ1$$eT1
000079650 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b26 / 172 = 0.151$$c2018$$dQ1$$eT1
000079650 591__ $$aPHYSICS, APPLIED$$b18 / 148 = 0.122$$c2018$$dQ1$$eT1
000079650 592__ $$a2.396$$b2018
000079650 593__ $$aNanoscience and Nanotechnology$$c2018$$dQ1
000079650 593__ $$aMaterials Science (miscellaneous)$$c2018$$dQ1
000079650 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000079650 700__ $$aGonzález-Orive, Alejandro
000079650 700__ $$aBock, Soren
000079650 700__ $$aFenero, Marta
000079650 700__ $$0(orcid)0000-0001-8494-3193$$aHerrer, I. Lucía$$uUniversidad de Zaragoza
000079650 700__ $$aMilan, David C.
000079650 700__ $$aLorenzoni, Matteo
000079650 700__ $$aNichols, Richard J.
000079650 700__ $$0(orcid)0000-0002-4729-9578$$aCea, Pilar$$uUniversidad de Zaragoza
000079650 700__ $$aPerez-Murano, Francesc
000079650 700__ $$aLow, Paul J.
000079650 700__ $$0(orcid)0000-0001-9193-3874$$aMartin, Santiago$$uUniversidad de Zaragoza
000079650 7102_ $$12012$$2755$$aUniversidad de Zaragoza$$bDpto. Química Física$$cÁrea Química Física
000079650 773__ $$g10, 29 (2018), 14128-14138$$pNanoscale$$tNANOSCALE$$x2040-3364
000079650 8564_ $$s1595288$$uhttps://zaguan.unizar.es/record/79650/files/texto_completo.pdf$$yVersión publicada
000079650 8564_ $$s103681$$uhttps://zaguan.unizar.es/record/79650/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000079650 909CO $$ooai:zaguan.unizar.es:79650$$particulos$$pdriver
000079650 951__ $$a2020-01-17-22:11:37
000079650 980__ $$aARTICLE