TY - JOUR
T1 - Efficient photoinduced energy transfer in a newly developed hybrid SBA-15 photonic antenna
AU - Cucinotta, Fabio
AU - Carniato, Fabio
AU - Devaux, André
AU - De Cola, Luisa
AU - Marchese, Leonardo
PY - 2012/11/26
Y1 - 2012/11/26
N2 - A new hybrid photostable donor-acceptor mesoporous SBA-15 silica system was designed and prepared. It consists of an encapsulated donor, the Super Yellow (SY) polymer, which transfers the photoexcitation energy directly to an acceptor dye that is linked outside the framework. The obtained composite material was characterized by X-ray diffraction, nitrogen-physisorption porosimetry, diffuse-reflectance (DR)-UV/Vis spectroscopy and photoluminescence, space- and time-resolved confocal microscopy. The physico-chemical analyses showed that the system behaves as an efficient Förster resonance energy transfer (FRET) pair, and high photoluminescence was observed from the acceptor. The presented photonic antenna is the first example of dye sensitization by polymer-loaded mesoporous silica and represents a step forward in the search for new efficient and stable materials with opto-electronic applications. Hybrid materials: A new hybrid photonic antenna is presented, in which efficient Förster resonance energy transfer (FRET) occurs from a protected donor, entrapped into mesoporous SBA-15 platelets, to an acceptor dye, covalently bound on the silica surface (see figure). The FRET pair showed high photoluminescence and photostability, proving the material to be excellent for use as a light-harvesting system in optoelectronic applications (see figure).
AB - A new hybrid photostable donor-acceptor mesoporous SBA-15 silica system was designed and prepared. It consists of an encapsulated donor, the Super Yellow (SY) polymer, which transfers the photoexcitation energy directly to an acceptor dye that is linked outside the framework. The obtained composite material was characterized by X-ray diffraction, nitrogen-physisorption porosimetry, diffuse-reflectance (DR)-UV/Vis spectroscopy and photoluminescence, space- and time-resolved confocal microscopy. The physico-chemical analyses showed that the system behaves as an efficient Förster resonance energy transfer (FRET) pair, and high photoluminescence was observed from the acceptor. The presented photonic antenna is the first example of dye sensitization by polymer-loaded mesoporous silica and represents a step forward in the search for new efficient and stable materials with opto-electronic applications. Hybrid materials: A new hybrid photonic antenna is presented, in which efficient Förster resonance energy transfer (FRET) occurs from a protected donor, entrapped into mesoporous SBA-15 platelets, to an acceptor dye, covalently bound on the silica surface (see figure). The FRET pair showed high photoluminescence and photostability, proving the material to be excellent for use as a light-harvesting system in optoelectronic applications (see figure).
KW - donor-acceptor systems
KW - energy transfer
KW - mesoporous materials
KW - photonic antenna
KW - semiconductors
UR - http://www.scopus.com/inward/record.url?scp=84869406778&partnerID=8YFLogxK
U2 - 10.1002/chem.201202505
DO - 10.1002/chem.201202505
M3 - Article
SN - 0947-6539
VL - 18
SP - 15310
EP - 15315
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 48
ER -