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Mesoscopic FRET Antenna Materials by Self‐Assembling Iridium(III) Complexes and BODIPY Dyes

Lookup NU author(s): Marina Santana Vega, Dr Fabio Cucinotta



This is the authors' accepted manuscript of an article that has been published in its final definitive form by Wiley-VCH Verlag, 2018.

For re-use rights please refer to the publisher's terms and conditions.


© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. This study presents a new design of light-harvesting antenna materials using two dyes organised into mesoporous silica: an iridium(III) complex and a BODIPY-derived surfactant that undergo Förster resonance energy transfer (FRET), acting, respectively, as donor and acceptor. The chemical structure of each dye determines the position taken within the micellar templates used for the synthesis of the silica host, which maintains mesopore order as shown by TEM imaging. Steady-state and time-resolved UV-visible spectroscopy revealed that incorporation of the iridium complex into the silica shields it from oxygen-induced quenching and allows a degree of control over the donor-acceptor distance, yielding FRET efficiencies from 24 to 76% and tuneable emission ranges. Such silica-based antennae show promising properties for the realisation of polychromatic sensitisers for photovoltaics and photocatalysis.

Publication metadata

Author(s): Bagnall AJ, SantanaVega M, Martinelli J, Djanashvili K, Cucinotta F

Publication type: Article

Publication status: Published

Journal: Chemistry - A European Journal

Year: 2018

Volume: 24

Issue: 46

Pages: 11992-11999

Print publication date: 14/08/2018

Online publication date: 02/07/2018

Acceptance date: 02/07/2018

Date deposited: 31/08/2018

ISSN (print): 0947-6539

ISSN (electronic): 1521-3765

Publisher: Wiley-VCH Verlag


DOI: 10.1002/chem.201802745


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