Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Transition voltage spectroscopy of porphyrin molecular wires

Bennett, Neil, Xu, Gengzhao, Esdaile, Louisa J., Anderson, Harry L., Macdonald, John Emyr ORCID: https://orcid.org/0000-0001-5504-1692 and Elliott, Martin ORCID: https://orcid.org/0000-0002-9254-9898 2010. Transition voltage spectroscopy of porphyrin molecular wires. Small 6 (22) , pp. 2604-2611. 10.1002/smll.201001046

Full text not available from this repository.

Abstract

Measurements are presented of the current-voltage (I–V) characteristics of individual thiol-tethered porphyrin molecules (isolated in an alkanethiol matrix) and of self-assembled monolayers. In both cases, it is found that I/V2 displays a minimum at a characteristic “transition voltage” Vm. Repeated measurements of the transition voltage enable both its time development and statistical behavior to be determined. For isolated molecules, the transition voltage shows a multipeaked distribution of values, indicating the presence of a small number of distinct molecular/contact configurations, each having different transport characteristics. For self-assembled monolayers, in contrast, a single-peaked distribution was observed, which is consistent with parallel conduction through many molecules

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Uncontrolled Keywords: Contact asymmetry ; Porphyrins ; Single molecules ; Scanning tunneling microscopytransition voltage spectroscopy
Publisher: Wiley
ISSN: 1613-6810
Last Modified: 17 Oct 2022 10:10
URI: https://orca.cardiff.ac.uk/id/eprint/7283

Citation Data

Cited 35 times in Scopus. View in Scopus. Powered By Scopus® Data

Actions (repository staff only)

Edit Item Edit Item