Carbon-fiber tips for scanning probe microscopes and molecular electronics experiments
EntityUAM. Departamento de Física Teórica de la Materia Condensada
PublisherSpringer New York
10.1186/1556-276X-7-254Nanoscale Research Letters 7 (2012): 1-10
ISSN1931-7573 (print); 1556-276X (online)
Funded byThis work was supported by MICINN (Spain) through the programs MAT2008-01735, MAT2011-25046 and CONSOLIDER-INGENIO-2010 ‘Nanociencia Molecular’ CSD-2007-00010; Comunidad de Madrid through program Nanobiomagnet S2009/MAT-1726; and European Union through programs BIMORE (MRTN-CT-2006-035859) and ELFOS (FP7)
Projectinfo:eu-repo/grantAgreement/EC/FP7/270369; Comunidad de Madrid. S2009/MAT-1726/NANOBIOMAGNET
SubjectsCarbon electrodes; Carbon electronics; Carbon tip; Quartz tuning fork; Single-molecule junction; STM break junction; Física
Rights© 2012 Rubio-Bollinger et al.
We fabricate and characterize carbon-fiber tips for their use in combined scanning tunneling and force microscopy based on piezoelectric quartz tuning fork force sensors. An electrochemical fabrication procedure to etch the tips is used to yield reproducible sub-100-nm apex. We also study electron transport through single-molecule junctions formed by a single octanethiol molecule bonded by the thiol anchoring group to a gold electrode and linked to a carbon tip by the methyl group. We observe the presence of conductance plateaus during the stretching of the molecular bridge, which is the signature of the formation of a molecular junction
Google Scholar:Rubio Bollinger, Gabino - Castellanos-Gomez, Andres - Bilan, Ştefan - Zotti, Linda Angela - Arroyo, Carlos R. - Agrait de la Puente, Mario Nicolás - Cuevas Rodríguez, Juan Carlos
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