What is it about?
Novel organic sensitizers comprising one or two fluorenylidene moieties in the donor part of triarylamine, cyanoacrylic acid as the acceptor/anchoring group and a fluorene and oligothiophene spacer in a D–π–A architecture have been synthesized and characterized as sensitizers for nanocrystalline TiO2-based dye-sensitized solar cells.
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Why is it important?
The dye-sensitized solar cells fabricated using fluorenylidene-based sensitizers showed higher power conversion efficiency than the dicyanovinyl derivatives attributed to their higher photocurrent density. A fluorenylidene-based dye exhibited a high power conversion efficiency of 6.13% under full sunlight (AM 1.5G, 100 mW cm−2).
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This page is a summary of: Organic dyes containing fluoren-9-ylidene chromophores for efficient dye-sensitized solar cells, Journal of Materials Chemistry A, January 2014, Royal Society of Chemistry,
DOI: 10.1039/c3ta15456d.
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