Decorating graphene nanosheets with electron accepting pyridyl-phthalocyanines

Nanoscale
Leonie WibmerDirk M Guldi

Abstract

We describe herein the preparation of novel exfoliated graphene-phthalocyanine nanohybrids, and the investigation of their photophysical properties. Pyridyl-phthalocyanines (Pcs) 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 . 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 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.

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Citations

Jul 28, 2015·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Leandro M O LourençoJoão P C Tomé
Sep 1, 2016·Journal of the American Chemical Society·Javier Fernández-ArizaTomás Torres
Jul 14, 2017·Chemical Society Reviews·Giovanni BottariTomás Torres
Feb 8, 2018·Advanced Materials·Leonie WibmerDirk M Guldi
Nov 3, 2017·Journal of Computational Chemistry·Adrian CalboreanPascale Maldivi
Sep 14, 2018·Chemistry : a European Journal·Christian D MethfesselDirk M Guldi
May 17, 2017·Chemical Science·Alexandra RothMilan Kivala
Dec 14, 2018·Chemical Science·Myriam BarrejónFernando Langa
Apr 14, 2020·Angewandte Chemie·Michele CacioppoMaurizio Prato
Sep 1, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·David P de SousaT David Waite
Sep 7, 2019·Journal of the American Chemical Society·Thiago T TassoMauricio S Baptista

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