Highly red-shifted NIR emission from a novel anthracene conjugated polymer backbone containing Pt( ii ) porphyrins
AuthorsFreeman, D. M. E.
Fallon, K. J.
KAUST DepartmentKAUST Solar Center (KSC)
Physical Sciences and Engineering (PSE) Division
Chemical Science Program
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Abstract© The Royal Society of Chemistry 2016. We present the synthesis of a novel diphenylanthracene (DPA) based semiconducting polymer. The polymer is solubilised by alkoxy groups attached directly to a DPA monomer, meaning the choice of co-monomer is not limited to exclusively highly solubilising moieties. Interestingly, the polymer shows a red-shifted elecroluminescence maximum (510 nm) when compared to its photoluminescence maximum (450 nm) which we attribute to excimer formation. The novel polymer was utilised as a host for a covalently-linked platinum(ii) complexed porphyrin dopant. Emission from these polymers was observed in the NIR and again showed almost a 100 nm red shift from photoluminescence to electroluminescence. This work demonstrates that utilising highly aggregating host materials is an effective tool for inducing red-shifted emission in OLEDs.
CitationFreeman DME, Minotto A, Duffy W, Fallon KJ, McCulloch I, et al. (2016) Highly red-shifted NIR emission from a novel anthracene conjugated polymer backbone containing Pt( ii ) porphyrins . Polym Chem 7: 722–730. Available: http://dx.doi.org/10.1039/c5py01473e.
SponsorsWe are grateful to the LCN for funding. We thank the EC Seventh Framework Programme (FP7/2007-2013) under Grant Agreement No. 607585 (OSNIRO). F. C. is a Royal Society Wolfson Research Merit Award Holder.
PublisherRoyal Society of Chemistry (RSC)