TY - JOUR
T1 - Mesoscopic FRET Antenna Materials by Self-Assembling Iridium(III) Complexes and BODIPY Dyes
AU - Bagnall, Andrew J.
AU - SantanaVega, Marina
AU - Martinelli, Jonathan
AU - Djanashvili, Kristina
AU - Cucinotta, Fabio
PY - 2018/1/1
Y1 - 2018/1/1
N2 - 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.
AB - 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.
KW - Energy transfer
KW - Host-guest systems
KW - Light-harvesting
KW - Luminescence
KW - Mesoporous materials
UR - http://www.scopus.com/inward/record.url?scp=85050499264&partnerID=8YFLogxK
U2 - 10.1002/chem.201802745
DO - 10.1002/chem.201802745
M3 - Article
AN - SCOPUS:85050499264
SN - 0947-6539
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
ER -