000079650 001__ 79650
000079650 005__ 20210104111915.0
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–(C[triple bond, length as m-dash]C)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, Au|C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CSiMe3 (Au|C8SiMe3). In the second stage, treatment of Au|C8SiMe3 with excess fluoride results in removal of the remaining TMS protecting group to give a modified monolayer Au|C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH (Au|C8H). The reactive terminal C[triple bond, length as m-dash]C–H moiety in Au|C8H can be modified by ‘click’ reactions with (azidomethyl)ferrocene (N3CH2Fc) to introduce a redox probe, to give Au|C6C2N3HCH2Fc. Alternatively, incubation of the modified gold substrate supported monolayer Au|C8H in a solution of gold nanoparticles (GNPs), results in covalent attachment of GNPs on top of the film via a second alkynyl carbon–Au σ-bond, to give structures Au|C8|GNP 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 Au|C6C2N3HCH2Fc systems and after formation of the gold top-contact electrode in Au|C8|GNP is demonstrated through electrochemical methods. The electrical properties of these nascent metal–monolayer–metal devices Au|C8|GNP 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)0000-0002-3576-5156$$aHerrer, I. Lucía$$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__ $$a2021-01-04-11:06:14
000079650 980__ $$aARTICLE