Interpretation of stochastic events in single-molecule measurements of conductance and transition voltage spectroscopy

• Verfasst von: Bâldea, Ioan [VerfasserIn]
• Titel: Interpretation of stochastic events in single-molecule measurements of conductance and transition voltage spectroscopy
• Verf.angabe: Ioan Bâldea
• E-Jahr: 2012
• Jahr: April 17, 2012
• Umfang: 5 S.
• Fussnoten: Publication Date (Web): April 17, 2012 ; Gesehen am 02.08.2018
• Titel Quelle: Enthalten in: American Chemical SocietyJournal of the American Chemical Society
• Ort Quelle: Washington, DC : American Chemical Society, 1879
• Jahr Quelle: 2012
• Band/Heft Quelle: 134(2012), 18, Seite 7958-7962
• ISSN Quelle: 1520-5126
• DOI: doi:10.1021/ja302248h
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1578218535

Abstract

The first simultaneous measurements of transition voltage (Vt) spectroscopy (TVS) and conductance (G) histograms (Guo et al., J. Am. Chem. Soc.2011, 133, 19189) form a great case for studying stochastic effects, which are ubiquitous in molecular junctions. Here an interpretation of those data is proposed that emphasizes the different physical content of Vt and G and reveals that fluctuations in the molecular orbital alignment have a significantly larger impact on G than initially claimed. The present study demonstrates the usefulness of corroborating statistical information on different transport properties and gives support to TVS as a valuable investigative tool.