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Issue 10, 2020
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2D host–guest supramolecular chemistry for an on-monolayer graphene emitting platform

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Abstract

Here is reported a novel strategy of non-covalent functionalization of graphene to avoid the electronic coupling between this semi-metal and directly adsorbed optically active molecules. Graphene-confined supramolecular host–guest recognition is used to elaborate an emitting hybrid platform. It is shown that the cavities of an on-monolayer graphene nanoporous self-assembled network are able to trap zinc phthalocyanine molecules coordinated to an emitting axial ligand. As a result, the emission of the hybrid system exhibits the same features as the isolated molecular emitter, demonstrating that the fluorescence is not quenched by graphene and that the well-controlled inter-chromophore distance prevents any interaction between the dyes. Furthermore, an in-depth modelling study confirms the weak interaction between the out of plane emitting moieties and the monolayer graphene. This work opens a new avenue for the realization of innovative light-responsive graphene-based devices in nanophotonics and optoelectronics.

Graphical abstract: 2D host–guest supramolecular chemistry for an on-monolayer graphene emitting platform

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Supplementary files

Article information


Submitted
11 Jun 2020
Accepted
05 Aug 2020
First published
10 Aug 2020

Mater. Horiz., 2020,7, 2741-2748
Article type
Communication

2D host–guest supramolecular chemistry for an on-monolayer graphene emitting platform

B. Kim, C. Cho, I. Arfaoui, C. Paris, C. Petit, T. Le Bahers, E. Kim and A. Attias, Mater. Horiz., 2020, 7, 2741 DOI: 10.1039/D0MH00950D

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