Organic dye for a dye sensitized solar cell

Patent metadata

Field	Value
Publication number	US-9865403-B2
Application number	US-201414759778-A
Country	US
Kind code	B2
Filing date	Feb 13, 2014
Priority date	Feb 14, 2013
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

Organic dye for a dye sensitized solar cell (DSSC) comprising at least one substituted pyrrole group. 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).

First claim

The invention claimed is:

1. An organic dye having general formula (I):

wherein:
D represents a triarylamine group having the following general formulae (VIII):

wherein R 1 is selected from linear or branched C 1 -C 20 alkoxyl groups,
q is 1;
P represents formulae (Ia):
-(T) n -(P 1 ) m -(P 2 ) r -(P 3 ) s -  (Ia)

wherein:
T represents a double carbon-carbon bond having general formula (XXVIII) or (XXIX):

wherein R 6 and R 7 each represent a hydrogen atom;
n is 1;
P 1 represents a bivalent pyrrole group having general formula (XXII):

wherein:
R 5 is selected from linear or branched C 1 -C 20 alkyl groups;
R 2 and R 3 , the same as each other, represent a hydrogen atom;
m is 1 and r and s are 0;
A represents a carboxycyanovinylene group having general formula (XLIV):

wherein R 11 represents a hydrogen atom; and
t is 2.

2. The organic dye according to claim 1 , wherein R 1 is a methoxyl group and R 5 is a methyl group.

3. A dye-sensitized photoelectric transformation element, comprising at least one organic dye according to claim 1 , said dye-sensitized photoelectric transformation element being supported on particles of a semiconductor oxide.

4. A dye-sensitized solar cell (DSSC) comprising the dye-sensitized photoelectric transformation element according to claim 3 .

5. A dye-sensitized photoelectric transformation element, comprising at least one organic dye according to claim 2 , said dye-sensitized photoelectric transformation element being supported on particles of a semiconductor oxide.

6. A dye-sensitized solar cell (DSSC) comprising the dye-sensitized photoelectric transformation element according to claim 5 .

7. A compound of formula (F1):

8. A dye-sensitized photoelectric transformation element, comprising a compound of formula (F1) according to claim 7 , said dye-sensitized photoelectric transformation element being supported on particles of a semiconductor oxide.

9. A dye-sensitized solar cell (DSSC) comprising the dye-sensitized photoelectric transformation element according to claim 8 .

10. The dye-sensitized solar cell (DSSC) of claim 6 , wherein said DSSC has a photoelectric transformation efficiency (η) higher than or equal to 3.5%.

11. The dye-sensitized solar cell (DSSC) of claim 4 , wherein said DSSC has a photoelectric transformation efficiency (η) higher than or equal to 3.5%.

12. The dye-sensitized solar cell (DSSC) of claim 9 , wherein said DSSC has a photoelectric transformation efficiency (η) higher than or equal to 3.5%.

Assignees

• Eni Spa

Inventors

• Biagini Paolo
• Abbotto Alessandro
• Manfredi Norberto

Classifications

• C09B57/001

  Pyrene dyes · CPC title

• C09B23/141

  Bis styryl dyes containing two radicals C6H5-CH=CH- · CPC title

• H01G9/2027

  comprising an oxide semiconductor electrode · CPC title

• Y02E10/542

  Dye sensitized solar cells · CPC title

• C09B23/14

  Styryl dyes · CPC title