Ligands for sensitizing dyes of dye-sensitized solar cells

Patent metadata

Field	Value
Publication number	US-9359334-B2
Application number	US-201013499012-A
Country	US
Kind code	B2
Filing date	Sep 29, 2010
Priority date	Sep 29, 2009
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

The present invention provides new bi- and polypyridine ligands of ruthenium dyes. The invention also provides solar cells, in particular dye-sensitized solar cells comprising the dyes. Formula(I):

First claim

The invention claimed is:

1. A compound comprising a bipyridine structure of formula (IV) below:

wherein R 3 is a substituent R Aryl and R 6 is a substituent R Anc ;
wherein substituents R 1 , R 2 , R 4 , R 5 , R 7 and R 8 are H;
wherein R Anc is a substituent of formula (II) below:

wherein

n is 0 or an integer of 1;
Anc is an anchoring group selected from —COOH, —PO 3 H 2 , —SO 3 H 2 , —CONHOH − , acetylacetonate;
A Z is independently selected from any moieties of formulae (1), (3) and (29) below:

wherein:
A of the moiety of formulae (3) is a heteroatom selected from O, S and Se;
R 1 -R 3 , R 9 -R 10 and R 95 -R 96 are H; and

wherein R Aryl is selected from substituents of formula (VI) and (VII) below:
—B 1 —R 16   (VI);

—B 1 —B 2 —R 16   (VII);

wherein:
B 1 of substituent (VI) is selected from any moieties of formulae (3), (4) and (5) below, B 1 of substituent (VII) is selected from any moieties of formulae (1), (2), (3), (4), (5), (29) and (30), and B 2 is selected from any moieties of formulae (3), (4), (5) below:

wherein:
A and B are a same or different heteroatom selected from O and S,
in moiety (5), p is an integer of 1-2 and R 13 and R 14 may be bound to the same carbon atom,
any one of R 1 -R 14 and R 95 -R 96 are H; and

wherein R 16 is selected from H, halogen, —OH, C1-C5 alkyl, cyano group (—CN), and from C1-C5 alkoxyl.

2. The compound according to claim 1 , wherein n is 0.

3. The compound according to claim 1 , wherein
A in substituent R Anc of formula (II) is S atom;
A in substituents R Aryl of formula (VI) and of formula (VII) is S atom; and
B in substituent R Aryl of formula (VI) and of formula (VII) is O atom.

4. The compound according to claim 1 , wherein
n of substituent R Anc of formula (II) is O;
A in substituent R Aryl of formula (VI) and of formula (VII) is S atom; and
B in substituent R Aryl of formula (VI) and of formula (VII) is O atom.

5. The compound according to claim 1 , wherein
A in substituent R Anc of formula (II) is S atom;
R Aryl is selected from substituents of formula (VI) with A in substituents R Aryl of formula (VI) being S atom and with B in substituents R Aryl of formula (VI) being O atom.

6. The compound according to claim 1 , wherein
A in substituent R Anc of formula (II) is S atom;
R Aryl is selected from substituents of formula (VII) with A in substituents R Aryl of formula (VII) being S atom and B of substituents R Aryl of formula (VII) being O atom.

7. The compound according to claim 1 , wherein
n in substituent R Anc of formula (II) is 0 and Anc is —COOH;
R Aryl is selected from substituents of formula (VII), wherein B 1 is selected from moiety of formula (29) and B 2 is selected from moiety of formula (4) with A being S atom and B being O atom; and R 16 is H.

Assignees

• Nazeeruddin Mohammad Khaja
• Graetzel Michael
• Abbotto Alessandro
• Marinzi Chiara
• Manfredi Norberto
• De Angelis Filippo
• Ecole Polytech

Inventors

• Nazeeruddin Mohammad Khaja
• Graetzel Michael
• Abbotto Alessandro
• Marinzi Chiara
• Manfredi Norberto
• De Angelis Filippo

Classifications

• Y02E10/549

  Organic PV cells · CPC title

• C07D495/14

  Ortho-condensed systems · CPC title

• H01G9/2059

  comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution · CPC title

• Y02E10/542

  Dye sensitized solar cells · CPC title

• C07D409/04 Primary

  directly linked by a ring-member-to-ring-member bond · CPC title