Solid polysiloxane (PSi) solutions of Au nanoparticles and mixture of sin/anti-isomers of bis(benzimidazole)perylene dye obtained by reaction of tetrachloroperynone with 4-tret-octylphenol and potassium carbonate in N-methylpyrrolidone solution were prepared by mixing  chloroauric acid and dye dissolved in dichloromethane with the vinyl-terminated Psi precursor, following by addition of Si-H containing precursor and in-oven curing for 24 hrs.  During the curing procedure, reduction of Au(III) to the zero-valent Au takes place. Absorbance and fluorescence properties of prepared Au/dye/PSi compositions were studied and compared with the spectra of solid solutions of dye in PSi without Au nanoparticles addition. It was found that introduction of Au nanoparticles of certain concentrations into PSi matrices may lead to significant increase of absorbance of the bis(benzimidazole)perylene dye and in several cases to noticeable increasing in the fluorescence intensity.

Absorbance and fluorescence properties of bis(benzimidazole)perylene dyes in polysiloxane matrix containing gold nanoparticles

251st National Meeting (2016)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.