Controlling photoconductivity in PBI films by supramolecular assembly

Draper, E. R. , Archibald, L. J., Nolan, M. C., Schweins, R., Zwijnenburg, M. A., Sproules, S. and Adams, D. J. (2018) Controlling photoconductivity in PBI films by supramolecular assembly. Chemistry: A European Journal, 24(16), pp. 4006-4010. (doi:10.1002/chem.201800201) (PMID:29405458) (PMCID:PMC5887895)

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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 erudite choice of substituent, as demonstrated by us here optimising the photoconductivity of PBI films in this way.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Archibald, Lewis and Sproules, Dr Stephen and Draper, Emily and Adams, Dave and Nolan, Mr Michael
Authors: Draper, E. R., Archibald, L. J., Nolan, M. C., Schweins, R., Zwijnenburg, M. A., Sproules, S., and Adams, D. J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Chemistry: A European Journal
Publisher:Wiley
ISSN:0947-6539
ISSN (Online):1521-3765
Published Online:06 February 2018
Copyright Holders:Copyright © 2018 The Authors
First Published:First published in Chemistry: A European Journal 24(16):4006-4010
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
768041Multicomponent Supramolecular HydrogelsDave AdamsEngineering and Physical Sciences Research Council (EPSRC)EP/L021978/2SCHOOL OF CHEMISTRY