Ionization energy and energy gap structure of MoSI molecular wires Kelvin probe, ultraviolet photoelectron spectroscopy, and cyclic voltammetry measurements

Ionization energy and energy gap structure of MoSI molecular wires : Kelvin probe, ultraviolet photoelectron spectroscopy, and cyclic voltammetry measurements

© 2011 American Chemical Society

Bibliographische Detailangaben
Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1999. - 27(2011), 8 vom: 19. Apr., Seite 4296-9
1. Verfasser: Strojnik, Martin (VerfasserIn)
Weitere Verfasser: Omerzu, Ales, Majkić, Aleksej, Mihailovic, Peter M, Lukan, Junos, Bavdek, Gregor, Bratina, Gvido, Cvetko, Dean, Topolovsek, Peter, Mihailovic, Dragan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2011
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
Beschreibung
Zusammenfassung:© 2011 American Chemical Society
The work function W of Mo(6)S(3)I(6) molecular nanowires is determined by Kelvin probe (KP) measurements, UV photoelectron spectroscopy (UPS), and cyclic voltammetry (CV). The values obtained by all three methods agree well, giving W = 4.8 ± 0.1 eV. CV measurements also give a gap between the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) of E(g) = 1.2 ± 0.1 eV, in agreement with recent optical measurements, but in disagreement with theoretical calculations, which predict the material to be a metal. The electronic structure of Mo(6)S(3)I(6) suggests use of the material in applications such as bulk heterostructure photovoltaics and transparent electrodes and for molecular electronics devices
Beschreibung:Date Completed 26.08.2011
Date Revised 12.04.2011
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
ISSN:1520-5827
DOI:10.1021/la1050767