Dichotomy between level broadening and level coupling to electrodes in large area EGaIn molecular junctions

Choosing self-assembled monolayers (SAMs) of fluorine-terminated oligophenylenes adsorbed on gold as an illustration, we show that a single-level [molecular orbital (MO)] model can excellently reproduce full I-V curves measured for large area junctions fabricated with a top EGaIn contact. In additio...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Bâldea, Ioan (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: March 7, 2024
In: The journal of physical chemistry letters
Year: 2024, Jahrgang: 15, Heft: 10, Pages: 2916-2921
ISSN:1948-7185
DOI:10.1021/acs.jpclett.4c00386
Online-Zugang:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1021/acs.jpclett.4c00386
Verlag, lizenzpflichtig, Volltext: https://pubs.acs.org/doi/10.1021/acs.jpclett.4c00386
Volltext
Verfasserangaben:Ioan Bâldea
Beschreibung
Zusammenfassung:Choosing self-assembled monolayers (SAMs) of fluorine-terminated oligophenylenes adsorbed on gold as an illustration, we show that a single-level [molecular orbital (MO)] model can excellently reproduce full I-V curves measured for large area junctions fabricated with a top EGaIn contact. In addition, this model unravels a surprising dichotomy between MO coupling to electrodes and MO broadening. Importantly for the coherence of the microscopic description, the latter is found to correlate with the SAM coverage and molecular and π* orbital tilt angles.
Beschreibung:Gesehen am 14.05.2024
Beschreibung:Online Resource
ISSN:1948-7185
DOI:10.1021/acs.jpclett.4c00386