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US 9,997,299 B2Granted
Organic dye for a dye-sensitized solar cell
AssigneesENI S.p.A., Cnrs (Centre National De La Recherche Scientifique)
InventorsPaolo Biagini, Jean Roncali, Dora Demeter, Philippe Leriche
Life of this patent
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Abstract
Organic dye for a dye-sensitized solar cell (DSSC) comprising at least one electron-acceptor unit and at least one π-conjugated unit. Said organic dye is particularly useful in a dye-sensitized photoelectric transformation element which, in its turn, can be used in a dye-sensitized solar cell (DSSC).
Claims12
An organic dye having a formula (I):
- wherein:
- X is a hydrogen atom, or a carboxycyanovinylene group having the formula (II):
- wherein R5 is an hydrogen atom;
- Z is a carboxycyanovinylene group having the formula (II) or (IV):
- wherein R5 is an hydrogen atom;
- R1 and R2, identical to each other, are a n-hexyl group, a n-octyl group, a n-decyl group, or a n-dodecyl group;
- R3 and R4, identical to or different from each other, are a hydrogen atom or a n-hexyl group, a n-octyl group, a n-decyl group, or a n-dodecyl group;
- or, R3 and R4 are bound to each other to form, together with the other atoms to which they are bound, a saturated cycle containing four carbon atoms and two oxygen atoms;
- n is 1;
- p is 0 or 1;
- and
- m is 1.
9 more elements
Dependencies are inferred from the claim text.