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Lookup NU author(s): Dr Fabio Cucinotta, Dr Ben Jarman
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This study presents two series of new host–guest chromophoric systems, where BODIPY dyes are organized into mesoporous silica. The dyes self-assemble with surfactants to generate micellar templates that can direct the formation of the silica networks. The materials were characterized by means of small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM) to elucidate their structure, and by UV/Vis absorption spectroscopy to determine their optical properties. Dye-loaded COK-12 materials retain an ordered structure and exhibit a green fluorescence that slightly red-shifts and undergoes quenching as the dye loading increases. A second system is based on MCM-41 silica and works as a polychromatic antenna, where a high energy species forms within the template and drive excitation energy transfer in timescales down to 20 ps. Such systems show promising performances for the realization of photonic antennae, to be used as sensitizers for solar cells and photocatalytic devices.
Author(s): Cucinotta F, Jarman BP, Caplan C, Cooper SJ, Riggs HJ, Martinelli J, Djanashvili K, LaMazza E, Puntoriero F
Publication type: Article
Publication status: Published
Journal: ChemPhotoChem
Year: 2018
Volume: 2
Issue: 3
Pages: 196-206
Print publication date: 13/03/2018
Online publication date: 10/11/2017
Acceptance date: 10/11/2017
ISSN (electronic): 2367-0932
Publisher: Wiley
URL: https://doi.org/10.1002/cptc.201700144
DOI: 10.1002/cptc.201700144
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