Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines

Wibmer L, Lourenco LMO, Roth AM, Katsukis G, Neves MGPMS, Cavaleiro JAS, Tome JPC, Torres T, Guldi DM (2015)

Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 7

Pages Range: 5674-5682

Journal Issue: 13

DOI: 10.1039/c4nr05719h

Abstract

We describe herein the preparation of novel exfoliated graphene-phthalocyanine nanohybrids, and the investigation of their photophysical properties. Pyridyl-phthalocyanines (Pcs) 1-3 are presented as novel electron accepting building blocks of variable strengths with great potential for the exfoliation of graphite via their immobilization onto the basal plane of graphene in dimethylformamide (DMF) affording single layered and turbostratic graphene based G1-G3. G1-G3 were fully characterized (AFM, TEM, Raman, steady-state and pump probe transient absorption spectroscopy) and were studied in terms of electron donor-acceptor interactions in the ground and excited states. In this context, electron transfer upon photoexcitation from graphene to the electron accepting Pcs with dynamics, for example, in G2 of <1 and 330 ± 50 ps for charge separation and charge recombination, respectively, was corroborated in a series of steady-state and time-resolved spectroscopy experiments. This journal is

Authors with CRIS profile

Involved external institutions

University of Aveiro / Universidade de Aveiro Portugal (PT) Universidad Autónoma de Madrid (UAM) Spain (ES)

How to cite

APA:

Wibmer, L., Lourenco, L.M.O., Roth, A.M., Katsukis, G., Neves, M.G.P.M.S., Cavaleiro, J.A.S.,... Guldi, D.M. (2015). Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines. Nanoscale, 7(13), 5674-5682. https://dx.doi.org/10.1039/c4nr05719h

MLA:

Wibmer, Leonie, et al. "Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines." Nanoscale 7.13 (2015): 5674-5682.

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