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Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines

(2015) NANOSCALE. 7(13). p.5674-5682
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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.
Keywords
HYBRIDS, FILMS, GRAPHITE, BULK FUNCTIONALIZATION, LIQUID-PHASE EXFOLIATION, NANOGRAPHENE, DERIVATIVES, COMPOSITES, STABILITY, PORPHYRIN

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MLA
Wibmer, Leonie et al. “Decorating Graphene Nanosheets with Electron Accepting Pyridyl-phthalocyanines.” NANOSCALE 7.13 (2015): 5674–5682. Print.
APA
Wibmer, L., Lourenço, L. M., Roth, A., Katsukis, G., Neves, M. G., Cavaleiro, J. A., Tomé, J., et al. (2015). Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines. NANOSCALE, 7(13), 5674–5682.
Chicago author-date
Wibmer, Leonie, Leandro MO Lourenço, Alexandra Roth, Georgios Katsukis, Maria GPMS Neves, José AS Cavaleiro, João Tomé, Tomás Torres, and Dirk M Guldi. 2015. “Decorating Graphene Nanosheets with Electron Accepting Pyridyl-phthalocyanines.” Nanoscale 7 (13): 5674–5682.
Chicago author-date (all authors)
Wibmer, Leonie, Leandro MO Lourenço, Alexandra Roth, Georgios Katsukis, Maria GPMS Neves, José AS Cavaleiro, João Tomé, Tomás Torres, and Dirk M Guldi. 2015. “Decorating Graphene Nanosheets with Electron Accepting Pyridyl-phthalocyanines.” Nanoscale 7 (13): 5674–5682.
Vancouver
1.
Wibmer L, Lourenço LM, Roth A, Katsukis G, Neves MG, Cavaleiro JA, et al. Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines. NANOSCALE. 2015;7(13):5674–82.
IEEE
[1]
L. Wibmer et al., “Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines,” NANOSCALE, vol. 7, no. 13, pp. 5674–5682, 2015.
@article{7245164,
  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.},
  author       = {Wibmer, Leonie and Lourenço, Leandro MO and Roth, Alexandra and Katsukis, Georgios and Neves, Maria GPMS and Cavaleiro, José AS and Tomé, João and Torres, Tomás and Guldi, Dirk M},
  issn         = {2040-3364},
  journal      = {NANOSCALE},
  keywords     = {HYBRIDS,FILMS,GRAPHITE,BULK FUNCTIONALIZATION,LIQUID-PHASE EXFOLIATION,NANOGRAPHENE,DERIVATIVES,COMPOSITES,STABILITY,PORPHYRIN},
  language     = {eng},
  number       = {13},
  pages        = {5674--5682},
  title        = {Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines},
  url          = {http://dx.doi.org/10.1039/c4nr05719h},
  volume       = {7},
  year         = {2015},
}

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