On-chip integrated process-programmable sub-10 nm thick molecular devices switching between photomultiplication and memristive behaviour.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
24 May 2022
24 May 2022
Historique:
received:
10
11
2021
accepted:
05
05
2022
entrez:
24
5
2022
pubmed:
25
5
2022
medline:
25
5
2022
Statut:
epublish
Résumé
Molecular devices constructed by sub-10 nm thick molecular layers are promising candidates for a new generation of integratable nanoelectronic applications. Here, we report integrated molecular devices based on ultrathin copper phthalocyanine/fullerene hybrid layers with microtubular soft-contacts, which exhibit process-programmable functionality switching between photomultiplication and memristive behaviour. The local electric field at the interface between the polymer bottom electrode and the enclosed molecular channels modulates the ionic-electronic charge interaction and hence determines the transition of the device function. When ions are not driven into the molecular channels at a low interface electric field, photogenerated holes are trapped as electronic space charges, resulting in photomultiplication with a high external quantum efficiency. Once mobile ions are polarized and accumulated as ionic space charges in the molecular channels at a high interface electric field, the molecular devices show ferroelectric-like memristive switching with remarkable resistive ON/OFF and rectification ratios.
Identifiants
pubmed: 35610214
doi: 10.1038/s41467-022-30498-y
pii: 10.1038/s41467-022-30498-y
pmc: PMC9130281
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2875Informations de copyright
© 2022. The Author(s).
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