Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
A gate controlled molecular switch based on picene-F4TCNQ charge-transfer materialElectronic supplementary information (ESI) available. See DOI: 10.1039/C4NR02455A
Erscheinungsjahr
2014-11
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
We show that the recently synthesized charge-transfer material picene-F
4
TCNQ can be used as a gate-voltage controlled molecular switch. The picene-F
4
TCNQ system is compared with the extensively characterized anthraquinone-based molecular system, which is known to exhibit large switching ratios due to quantum interference effects. In the case of picene-F
4
TCNQ we find switching ratios larger by one order of magnitude. Further, our calculations reveal that the picene-F
4
TCNQ system resembles remarkably well the
I
-
V
characteristics of a classical diode. The reverse-bias current of this molecular diode can be increased two orders of magnitude by an external gate voltage. Based on density-functional theory calculations we show that the hybrid states formed by the picene-F
4
TCNQ system play the key role in determining transport properties. We further conclude that the tuning of quantum transport properties through hybrid states is a general concept which opens a new route towards functional materials for molecular electronics.
We show that the recently synthesized charge-transfer material picene-F
4
TCNQ can be used as a gate-voltage controlled molecular switch.
Sprache
Englisch
Identifikatoren
ISSN: 2040-3364
eISSN: 2040-3372
DOI: 10.1039/c4nr02455a
Titel-ID: cdi_rsc_primary_c4nr02455a
Format
–
Weiterführende Literatur
Empfehlungen zum selben Thema automatisch vorgeschlagen von bX