Zheng, M;
Lamberti, F;
Franco, L;
Collini, E;
Fortunati, I;
Bottaro, G;
Daniel, G;
... Gatti, T; + view all
(2019)
A film-forming graphene/diketopyrrolopyrrole covalent hybrid with far-red optical features: Evidence of photo-stability.
Synthetic Metals
, 258
, Article 116201. 10.1016/j.synthmet.2019.116201.
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Abstract
A dianiline derivative of a symmetric donor-acceptor-donor diketopyrrolopyrrole-based dye is employed for the two-sided covalent functionalization of liquid exfoliated few layers graphene flakes, through a direct arylation reaction. The resulting nanohybrid features the properties of a polymeric species, being solution-processed into homogeneous thin films, featuring a pronounced red-shift of the main absorption band with respect to the model dye unit and energy levels comparable to those of common diketopyrrolopyrrole-based polymers. A good electrical conductivity and the absence of radical signals generated after intense white light illumination, as probed through electron paramagnetic resonance, suggest a possible future application of this composite material in the field of photoprotective, antistatic layers with tunable colors.
| Type: | Article |
|---|---|
| Title: | A film-forming graphene/diketopyrrolopyrrole covalent hybrid with far-red optical features: Evidence of photo-stability |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.synthmet.2019.116201 |
| Publisher version: | https://doi.org/10.1016/j.synthmet.2019.116201 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Functional nanocarbon hybrids, Liquid exfoliated graphene, Diketopyrrolopyrrole, Nanocomposites, Hybrid nanomaterials |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10086340 |
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