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Branched and Bulky Substituted Ruthenium Sensitizers for Dye-Sensitized Solar Cells

Branched and Bulky Substituted Ruthenium Sensitizers for Dye-Sensitized Solar Cells

M Sánchez Carballo, M Urbani, A Kumar Chandiran, D González-Rodríguez, P Vázquez, M Grätzel, M K Nazeeruddin, T Torres

Dalton Trans. 2014 Oct 28;43(40):15085-91.

PMID: 25188836

Abstract:

We report on the synthesis, and photovoltaic performances of four novel Ru(ii)-bipyridine heteroleptic complexes TT206-209, incorporating branched and bulkier alkyl chains compared to their linear analogues C106 and CYC-B11 previously reported. In both series, we found that dyes containing 2-methyl-hex-2-yl substitution gave better performances than 1,1-dipropylbutyl. The best overall performance over the four dyes was obtained for TT207 (CYC-B11 analogue), which contains 2-methylhex-2-yl type substitution, achieving an overall PCE of 8.5%. Furthermore, the optimization of TT207/DSSCs, with respect to the dye-uptake solvent and electrolyte composition, led to a maximum PCE of 9.1% under AM1.5 G standard conditions.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP1152310694	C106 Dye		1152310-69-4	Price

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