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Highly Luminescent Encapsulated Narrow Bandgap Polymers Based on Diketopyrrolopyrrole

Leventis, A; Royakkers, J; Rapidis, AG; Goodeal, N; Corpinot, MK; Frost, JM; Bučar, D-K; ... Bronstein, H; + view all (2018) Highly Luminescent Encapsulated Narrow Bandgap Polymers Based on Diketopyrrolopyrrole. Journal of the American Chemical Society , 140 (5) pp. 1622-1626. 10.1021/jacs.7b13447. Green open access

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Abstract

We present the synthesis and characterisation of a series of encap-sulated diketopyrrolopyrrole red-emitting conjugated polymers. The novel materials display extremely high fluorescence quantum yields in both solution (>70%) and thin film (>20%). Both the absorption and emission spectra show clearer, more defined features compared to their naked counterparts demonstrating the suppression of inter and intra-molecular aggregation. We find that the encapsulation results in decreased energetic disorder and a dramatic increase in backbone co-linearity as evidenced by STM. This study paves the way for DPP to be used in emissive solid state applications and demonstrates a novel method to reduce structural disorder in conju-gated polymers.

Type: Article
Title: Highly Luminescent Encapsulated Narrow Bandgap Polymers Based on Diketopyrrolopyrrole
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/jacs.7b13447
Publisher version: http://dx.doi.org/10.1021/jacs.7b13447
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.
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 Chemistry
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/10042062
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