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|Title:||Two New Dyes with Carboxypyridinium Regioisomers as Anchoring Groups for Dye-Sensitized Solar Cells||Authors:||Franchi, Daniele
Fabrizi De Biani, Fabrizia
Di Carlo, Aldo
|Keywords:||dye-sensitized solar cells; organic dyes; photosensitizer; photostability; regioisomers; Organic Chemistry||Issue Date:||2015||Project:||None||Journal:||SYNLETT||Abstract:||
Two new organic dye-sensitized solar cell (DSSC) sensitizers bearing regioisomeric carboxyl-N-methylpyridinium moieties were prepared and fully characterized. Based on TD-DFT calculations, they were anticipated to show a significantly red-shifted absorption spectrum compared to normal carboxypyridines and other regioisomeric pyridinium salts. Although this prediction was met, the two regioisomers unexpectedly showed very different stabilities upon adsorption on TiO2.
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