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Exfoliation and supramolecular functionalization of graphene with an electron donor perylenediimide derivative

Title
Exfoliation and supramolecular functionalization of graphene with an electron donor perylenediimide derivative
Authors
Martin-Gomis, LuisKarousis, NikosFernandez-Lazaro, FernandoPetsalakis, Ioannis D.Ohkubo, KeiFukuzumi, ShunichiTagmatarchis, NikosSastre-Santos, Angela
Ewha Authors
Shunichi Fukuzumi
SCOPUS Author ID
Shunichi Fukuzumiscopus
Issue Date
2017
Journal Title
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
ISSN
1474-905XJCR Link1474-9092JCR Link
Citation
vol. 16, no. 4, pp. 596 - 605
Publisher
ROYAL SOC CHEMISTRY
Indexed
SCI; SCIE; SCOPUS; KCI WOS
Abstract
The liquid exfoliation of graphite to few layered graphene sheets together with the non-covalent supramolecular functionalization of exfoliated graphene by the synthesized N, N'-di(2-ethylhexyl)-1-(N ''''-methylpiperazin-N '''-yl) perylene-3,4,9,10-tetracarboxydiimide (Pip-PDI) is reported. The aromatic Pip-PDI has the ability to non-covalently interact with the exfoliated graphene sheets, stabilizing them and preventing their reassembly. On the other hand, the presence of the piperazine moiety on the bay position of the PDI core makes it an ideal electron donor, nicely coupled with the electron accepting exfoliated graphene, hence, forming a novel donor-acceptor nanoensemble, which was characterized by complementary spectroscopic and microscopy techniques. Theoretical calculations predicted the absence of a meaningful charge-separated state within the Pip-PDI/graphene ensemble, which was also proven by time-resolved fluorescence and transient absorption measurements.
DOI
10.1039/c6pp00351f
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자연과학대학 > 화학·나노과학전공 > Journal papers
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