title: The influence of phthalocyanine aggregation in complexes with CdSe/ZnS quantum dots on the photophysical properties of the complexes.
abstract: The formation of nonluminescent aggregates of aluminium sulfonated phthalocyanine in complexes with CdSe/ZnS quantum dots causes a decrease of the intracomplex energy transfer efficiency with increasing phthalocyanine concentration. This was confirmed by steady-state absorption and photoluminescent spectroscopy. A corresponding physical model was developed that describes well the experimental data. The results can be used at designing of QD/molecule systems with the desired spatial arrangement for photodynamic therapy.
authors.affiliation: Department of optical physics and modern natural science, ITMO University, 197101 Saint Petersburg, Russia.
authors.forename: Irina V
authors.initials: IV
authors.lastname: Martynenko
authors.affiliation: Department of optical physics and modern natural science, ITMO University, 197101 Saint Petersburg, Russia.
authors.forename: Anna O
authors.initials: AO
authors.lastname: Orlova
authors.affiliation: Department of optical physics and modern natural science, ITMO University, 197101 Saint Petersburg, Russia.
authors.forename: Vladimir G
authors.initials: VG
authors.lastname: Maslov
authors.affiliation: Department of optical physics and modern natural science, ITMO University, 197101 Saint Petersburg, Russia.
authors.forename: Anatoly V
authors.initials: AV
authors.lastname: Fedorov
authors.affiliation: Department of Electronic and Communications Engineering, Dublin Institute of Technology, Dublin 8, Ireland.
authors.forename: Kevin
authors.initials: K
authors.lastname: Berwick
authors.affiliation: Department of optical physics and modern natural science, ITMO University, 197101 Saint Petersburg, Russia.
authors.forename: Alexander V
authors.initials: AV
authors.lastname: Baranov
keywords: Förster resonance energy transfer; aggregation; photosensitizer; semiconductor nanocrystals; tetrapyrroles