Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Graphene performs the role of an electron donor in covalently interfaced porphyrin-boron azadipyrromethene dyads and manages photoinduced chargetransfer processes
Δημιουργός/Συγγραφέας:	Canton-Vitoria, R. Alsaleh, A. Z. Rotas, G. Nakanishi, Y. Shinohara, H. D’Souza, F. [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos
Εκδότης:	Royal Society of Chemistry
Ημερομηνία:	2022
Γλώσσα:	Αγγλικά
DOI:	10.1039/D2NR03740H
Περίληψη:	Herein, we introduced the versatility of free-base and zinc-metallated porphyrin (H2P and ZnP, respectively) to combine with boron azadipyrromethene (azaBDP) NIR absorbing species, for extending their photophysical interest and covalently anchored onto graphene. In particular, the covalent functionalization of graphene with those H2P-azaBDP and ZnP-azaBDP dyads ensured an invariable structure, in which both chromophores and graphene are in intimate contact, free of aggregations and impurities. Both H2P-azaBDP and ZnP-azaBDP dyads were found to perform energy transfer processes between the chromophores, however, only ZnP-azaBDP confirmed additional charge separation between the chromophores yielding the ZnP˙+-azaBDP˙− charge-separated state. On the other hand, graphene in (H2P-azaBDP)-graphene and (ZnP-azaBDP)-graphene hybrids was found to act as an electron donor, yielding (H2P-azaBDP˙−)-graphene˙+ and (ZnP-azaBDP˙−)-graphene˙+ charge-separated states at an ultrafast timescale. The creation of such donor–acceptor systems, featuring graphene as an electron donor and Vis-to-NIR electron-acceptor dyads, expands their utility when considered in optoelectronic applications.
Τίτλος πηγής δημοσίευσης:	Nanoscale
Τόμος/Κεφάλαιο:	14
Σελίδες:	15060-15072
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry [EL] Νανοτεχνολογία[EN] Nanotechnology [EL] Χημική τεχνολογία[EN] Chemical technolgy
Λέξεις-Κλειδιά:	Graphene Photoinduced charge-transfer
Κάτοχος πνευματικών δικαιωμάτων:	This journal is © The Royal Society of Chemistry 2022
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://pubs.rsc.org/en/content/articlelanding/2022/NR/D2NR03740H
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο