PTA-based ruthenium complexes as photosensitizers for dye-sensitized solar cells

[Display omitted] Two novel ruthenium complexes are synthesized, photo-characterized and tested as photosensitizers in dye-sensitized solar cells (DSCs): [RuCl2(mPTA)3(H2O)](CF3SO3)3 (C1) (m: methyl; PTA: 3,5,7-triaza-phosphaadamantane) and [Ru(C = C=CPh2)Cp(PTA)(PPh3)](CF3SO3) (C2). The complexes a...

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Bibliographic Details
Published in:Colloids and surfaces. A, Physicochemical and engineering aspects Physicochemical and engineering aspects, 2018-11, Vol.557, p.14-19
Main Authors: Sierra-Martin, Benjamin, Maldonado-Valdivia, Ana, Serrano-Ruiz, Manuel, Romerosa, Antonio, Fernandez-Barbero, Antonio
Format: Article
Language:English
Subjects:
Dye
PTA
Ruthenium complex
Sensitizer
Solar cell
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Summary:[Display omitted] Two novel ruthenium complexes are synthesized, photo-characterized and tested as photosensitizers in dye-sensitized solar cells (DSCs): [RuCl2(mPTA)3(H2O)](CF3SO3)3 (C1) (m: methyl; PTA: 3,5,7-triaza-phosphaadamantane) and [Ru(C = C=CPh2)Cp(PTA)(PPh3)](CF3SO3) (C2). The complexes are soluble in organic solvents and, interestingly, in water, which makes them useful for water-based photochemical processes. They possess excellent photon-absorption over a wide range of the spectrum with intense peaks at ∼ 330 nm for both sensitizers. A second peak is found for C2 at 525 nm, wider than the corresponding to the N719 standard dye. DSCs using these sensitizers are evaluated against different electrolytes. The solar cell performance was similar for both complexes and strongly dependent on the electrolyte nature, with a maximum conversion efficiency of 0.32% for the iodide/triiodide electrolyte.
ISSN:0927-7757
1873-4359
DOI:10.1016/j.colsurfa.2018.06.003