Chemical site capacitance: Submolecular measurements and a model

Roie Yerushalmi, Milko van der Boom, Hagai Cohen

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The study of molecular electric properties is an intriguing, rapidly developing field in which technological and basic scientific challenges and developments are evolving. Nevertheless, understanding of the interplay of intermolecular interactions, substrate effects, and electrode contacts remains challenging. Here, we present noncontact chemically resolved electrical measurements (CREM) of halide-terminated molecular layers and a straightforward model for quantitative analysis of submolecular chemical site capacitance. We demonstrate that under low current densities, the main electronic effects can be accounted for by considering the (sub)molecular properties of the monolayers, whereas the excess potential due to charge injection can be described as site capacitance corresponding to chemically identifiable molecular sites.

Original languageEnglish
Pages (from-to)13652-13654
Number of pages3
JournalJournal of Physical Chemistry C
Volume111
Issue number37
DOIs
Publication statusPublished - Sep 20 2007

Fingerprint

Capacitance measurement
Capacitance
capacitance
Charge injection
molecular properties
low currents
electrical measurement
quantitative analysis
halides
Monolayers
Electric properties
Current density
injection
current density
Electrodes
electrodes
Substrates
Chemical analysis
electronics
interactions

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Energy(all)

Cite this

Chemical site capacitance : Submolecular measurements and a model. / Yerushalmi, Roie; van der Boom, Milko; Cohen, Hagai.

In: Journal of Physical Chemistry C, Vol. 111, No. 37, 20.09.2007, p. 13652-13654.

Research output: Contribution to journalArticle

Yerushalmi, Roie ; van der Boom, Milko ; Cohen, Hagai. / Chemical site capacitance : Submolecular measurements and a model. In: Journal of Physical Chemistry C. 2007 ; Vol. 111, No. 37. pp. 13652-13654.
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