Shining nanosil: Fluorescent trimethoxysilanes were prepared by the hydrosilylation of N‐allyl perylene tetracarboxylic diimides and used for the covalent grafting of silica and silicananoparticles (see picture). The fluorescent chromophores operate independently at the surface of these particles.
3D single-molecule tracking revealed that the translational diffusion of guest dyes in poly(2-hydroxyethyl acrylate) thin films on glass substrates was confined in a horizontal layer at a distance longer than 300-700 nm from the surface of the substrate.
New organic–inorganic hybrid materials based on perylene diimide–polyhedral oligomeric silsesquioxane dyes with reduced quenching of the emission in the solid state
condensed phase. Aggregation caused quenching processes however represent an obstacle to the development of most luminogens in the condensed phase. This is why particularly fascinating are those materials showing high emission intensity in the solid state. Aggregation caused quenching is particularly detrimental for π-extended polycyclicaromatichydrocarbons, for example perylene tetracarboxylic acid