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Impact of device design on the electronic and optoelectronic properties of integrated Ru-terpyridine complexes

  • The performance of nanoelectronic and molecular electronic devices relies strongly on the employed functional units and their addressability, which is often a matter of appropriate interfaces and device design. Here, we compare two promising designs to build solid-state electronic devices utilizing the same functional unit. Optically addressable Ru-terpyridine complexes were incorporated in supramolecular wires or employed as ligands of gold nanoparticles and contacted by nanoelectrodes. The resulting small-area nanodevices were thoroughly electrically characterized as a function of temperature and light exposure. Differences in the resulting device conductance could be attributed to the device design and the respective transport mechanism, that is, thermally activated hopping conduction in the case of Ru-terpyridine wire devices or sequential tunneling in nanoparticle-based devices. Furthermore, the conductance switching of nanoparticle-based devices upon 530 nm irradiation was attributed to plasmon-induced metal-to-ligand charge transfer in the Ru-terpyridine complexes used as switching ligands. Finally, our results reveal a superior device performance of nanoparticle-based devices compared to molecular wire devices based on Ru-terpyridine complexes as functional units.

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Metadaten
Verfasserangaben:Max Mennicken, Sophia Katharina Peter, Corinna KaulenORCiDGND, Ulrich Simon, Silvia Karthäuser
DOI:https://doi.org/10.3762/bjnano.13.16
Titel des übergeordneten Werkes (Englisch):Beilstein journal of nanotechnology
Verlag:Beilstein-Institut zur Förderung der Chemischen Wissenschaften
Dokumentart:Artikel aus einer Zeitschrift/Zeitung
Sprache der Veröffentlichung:Englisch
Jahr der Veröffentlichung:2022
Datum der Freischaltung:02.11.2023
Freies Schlagwort / Tag:Ru-terpyridine wires; conductance switching; gold nanoparticles; nanoelectronic devices; optical addressing
Jahrgang:13
Erste Seite:219
Letzte Seite:229
Fakultäten / Institute / Einrichtungen:Fakultät Angewandte Natur- und Kulturwissenschaften
Begutachtungsstatus:peer-reviewed
Publikationsherkunft:Externe Publikationen
Forschungsschwerpunkt:Produktion und Systeme
OpenAccess Publikationsweg:Diamond Open Access - OA-Veröffentlichung ohne Publikationskosten (Sponsoring)
Lizenz (Deutsch):Creative Commons - CC BY - Namensnennung 4.0 International