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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
Author:Max Mennicken, Sophia Katharina Peter, Corinna KaulenORCiDGND, Ulrich Simon, Silvia Karthäuser
DOI:https://doi.org/10.3762/bjnano.13.16
Parent Title (English):Beilstein journal of nanotechnology
Publisher:Beilstein-Institut zur Förderung der Chemischen Wissenschaften
Document Type:Article
Language:English
Year of first Publication:2022
Release Date:2023/11/02
Tag:Ru-terpyridine wires; conductance switching; gold nanoparticles; nanoelectronic devices; optical addressing
Volume:13
First Page:219
Last Page:229
Institutes:Fakultät Angewandte Natur- und Kulturwissenschaften
Begutachtungsstatus:peer-reviewed
Publication:Externe Publikationen
research focus:Produktion und Systeme
OpenAccess Publikationsweg:Diamond Open Access - OA-Veröffentlichung ohne Publikationskosten (Sponsoring)
Licence (German):Creative Commons - CC BY - Namensnennung 4.0 International