Charge separation in graphene-decorated multimodular tris(pyrene)-subphthalocyanine-fullerene donor-acceptor hybrids

Angewandte Chemie
Chandra B KcFrancis D'Souza

Abstract

A new approach to probe the effect of graphene on photochemical charge separation in donor-acceptor conjugates is devised. For this, multimodular donor-acceptor conjugates, composed of three molecules of pyrene, a subphthalocyanine, and a fullerene C60 ((Pyr)3 SubPc-C60 ), have been synthesized and characterized. These systems were hybridized on few-layer graphene through π-π stacking interactions of the three pyrene moieties. The hybrids were characterized using Raman, HRTEM, and spectroscopic and electrochemical techniques. The energy levels of the donor-acceptor conjugates were fine-tuned upon interaction with graphene and photoinduced charge separation in the absence and presence of graphene was studied by femtosecond transient absorption spectroscopy. Accelerated charge separation and recombination was detected in these graphene-decorated conjugates suggesting that they could be used as materials for fast-responding optoelectronic devices and in light energy harvesting applications.

References

Feb 1, 2002·Organic Letters·David González-RodríguezLuis Echegoyen
May 20, 2004·Journal of the American Chemical Society·David González-RodríguezLuis Echegoyen
Mar 3, 2007·Nature Materials·A K Geim, K S Novoselov
Jun 27, 2007·Nano Letters·Supinda WatcharotoneRodney S Ruoff
Dec 12, 2007·Nano Letters·Xuan WangKlaus Müllen
May 1, 2008·Nano Letters·Peter BlakeKostya S Novoselov
Jul 16, 2008·Chemistry : a European Journal·David González-RodríguezDirk M Guldi
Jan 3, 2009·Nature Nanotechnology·Vincent C TungRichard B Kaner
Jun 23, 2009·Science·A K Geim
Jul 21, 2009·Chemical Reviews·Matthew J AllenRichard B Kaner
Sep 29, 2009·Angewandte Chemie·C N R RaoA Govindaraj
Mar 11, 2011·Angewandte Chemie·Jenny MaligDirk M Guldi
Oct 13, 2011·Journal of the American Chemical Society·Jason A MannWilliam R Dichtel
Jan 4, 2012·Advanced Materials·J MaligD M Guldi
Nov 6, 2012·Chemical Communications : Chem Comm·Chandra Bikram K CFrancis D'Souza
Feb 27, 2014·Chemical Reviews·Christian G ClaessensTomás Torres
May 23, 2014·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Sushanta K DasFrancis D'Souza
Jul 30, 2014·Chemical Communications : Chem Comm·Shawkat M AlyOmar F Mohammed

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Citations

Sep 28, 2016·Organic Letters·Jiahui KongYongshu Xie
Jul 14, 2017·Chemical Society Reviews·Giovanni BottariTomás Torres
Oct 28, 2016·Chemical Communications : Chem Comm·Héctor BarberoCeledonio M Álvarez
Aug 3, 2017·Chemistry : a European Journal·Michal Valášek, Marcel Mayor
Mar 6, 2019·Angewandte Chemie·Marta IzquierdoNazario Martín
Aug 3, 2019·Nanoscale·Myriam BarrejónFernando Langa
Nov 1, 2018·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Lian Xiao, Handong Sun
Aug 14, 2019·Inorganic Chemistry·Víctor Martínez-Agramunt, Eduardo Peris
Apr 18, 2019·The Journal of Organic Chemistry·Sergio FerreroCeledonio M Álvarez
Dec 31, 2019·The Journal of Organic Chemistry·Esmeralda CaballeroM Salomé Rodríguez-Morgade

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