Investigation Of Photo-Generation Processes In Semiconductive Polymers

In article the perspective of researches semi-conductor polymers for creation of photo-electric converters is considered. The processes of photo-generation of charge carriers in a molecular solid state are investigated. The role of the weak intermolecular interaction causing process of photo-generation of charge carriers through a status of the coulomb connected pair is shown. The first results of semi-conductor polymers-silicon systems investigations were reported. Such as of polymer composite materials we have used oligohydroguinone, oligo-αnaphthol, oligo-β-naphthol, oligo-amino-phenylen. Current-voltage characteristics of these polymer-silicon heterojunctions were investigated. The structural regularities of change of the photoeffect quantum efficiency in semiconductive polymers and their molecular complexes are investigated

Quantum dots coordinated with conjugated organic ligands: new nanomaterials with novel photophysics

CdSe quantum dots functionalized with oligo-(phenylene vinylene) (OPV) ligands (CdSe-OPV nanostructures) represent a new class of composite nanomaterials with significantly modified photophysics relative to bulk blends or isolated components. Single-molecule spectroscopy on these species have revealed novel photophysics such as enhanced energy transfer, spectral stability, and strongly modified excited state lifetimes and blinking statistics. Here, we review the role of ligands in quantum dot applications and summarize some of our recent efforts probing energy and charge transfer in hybrid CdSe-OPV composite nanostructures