Gauci, V., Loch, A. S. , McDowall, D., Edwards-Gayle, C. and Adams, D. J. (2024) Controlling aggregation of diketopyrrolopyrroles in water. Dyes and Pigments, 223, 111968. (doi: 10.1016/j.dyepig.2024.111968)
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Abstract
Charge repulsion can be used to control and fine tune the supramolecular aggregation of amino acid substituted diketopyrrolopyrroles in water. This is a simple method to access a number of different aggregation states with distinct photophysical properties without the need for extensive synthetic tuning, process engineering, or solvent optimisation. Most importantly, these different aggregates show different optical gaps, HOMO-LUMO gaps, electroactivity, and exciton binding energies. These systems expand the absorbance range achieved from one chromophore unit and also create systems with large Stokes shifts. This work therefore answers the demand for tailoring aggregate structures by manipulating charge repulsion in an aqueous environment.
| Item Type: | Articles |
|---|---|
| Additional Information: | We thank the Leverhulme Trust for funding (RPG-2019-165 and RPG-2018-013). We thank the EPSRC (R03480X/1) for funding. We acknowledge STFC beamtime allocation SM29985 on B21 at Diamond. This work benefitted from the SasView software, originally developed by the DANSE project under NSF award DMR-0520547. |
| Keywords: | Diketopyrrolopyrrole, aggregation, photoresponsive. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Gauci, Miss Valentina and Adams, Dave and McDowall, Mr Daniel and Loch, Dr Alex |
| Creator Roles: | Gauci, V.Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review and editing Loch, A.Data curation, Formal analysis, Writing – review and editing McDowall, D.Investigation, Methodology, Writing – review and editing Adams, D.Conceptualization, Formal analysis, Funding acquisition, Investigation, Project administration, Resources, Supervision, Writing – original draft, Writing – review and editing |
| Authors: | Gauci, V., Loch, A. S., McDowall, D., Edwards-Gayle, C., and Adams, D. J. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Dyes and Pigments |
| Publisher: | Elsevier |
| ISSN: | 0143-7208 |
| ISSN (Online): | 1873-3743 |
| Published Online: | 20 January 2024 |
| Copyright Holders: | Copyright © 2024 The Authors |
| First Published: | First published in Dyes and Pigments 223:111968 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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Funder and Project Information
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