Zwijnenburg, MA;
Draper, E;
Archibald, L;
Nolan, M;
Schweins, R;
Sproules, S;
Adams, D;
(2018)
Controlling Photoconductivity in PBI Films by Supramolecular Assembly.
Chemistry - A European Journal
, 24
(16)
pp. 4006-4010.
10.1002/chem.201800201.
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Abstract
Perylene bisimides (PBIs) self-assemble in solution. The solubility of the PBIs is commonly changed through the choice of substituents at the imide positions. It is generally assumed this substitution does not affect the electronic properties of the PBI, and that the properties of the self-assembled aggregate are essentially that of the isolated molecule. However, substituents do affect the self-assembly, resulting in potentially different packing in the formed aggregates. Here, we show that the photoconductivity of films formed from a library of substituted PBIs varies strongly with the substituent and demonstrate that this is due to the different ways in which they pack. Our results open the possibility for tuning the optoelectronic properties of self-assembled PBIs by controlling the aggregate structure through careful choice of substituent, as demonstrated by us here optimising the photoconductivity of PBI films in this way.
| Type: | Article |
|---|---|
| Title: | Controlling Photoconductivity in PBI Films by Supramolecular Assembly |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/chem.201800201 |
| Publisher version: | https://doi.org/10.1002/chem.201800201 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Aggregation; perylene; perylene bisimide; photoconductivity; self-assembly |
| 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 |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10045196 |
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