Indolizine-based dyes for dye-sensitized solar cell

Patent metadata

Field	Value
Publication number	US-10562913-B2
Application number	US-201515500480-A
Country	US
Kind code	B2
Filing date	Jul 30, 2015
Priority date	Jul 30, 2014
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

Compounds for use as sensitizer dyes in dye-sensitized solar cells.

First claim

We claim:

1. A visible absorbing or near infrared dye of the following formula:

wherein each R is optionally substituted and independently selected from halogen, H, alkyl, amino, O(alkyl), aryl, aryl-R 2(0-2) , or alkyl-R 2(0-2) ;
R 1 is cycloalkyl, phenyl, alkene or alkyne;
wherein when R 1 is phenyl it can optionally cyclize with one R to form an additional ring;
R 2 is halogen, H, alkyl, amino, O(alkyl), aryl, aryl-R 3(0-2) , or alkyl-R 3(0-2) ;
R 3 is halogen, H, alkyl, amino, O(alkyl), or aryl;
B is a π-bridge; and
A is an acceptor including at least one terminal group consisting of CO 2 H or PO 3 H 2 .

2. The dye of claim 1 , wherein R 1 is a substituted or unsubstituted phenyl.

3. The dye of claim 1 , of the following formula:

4. The dye of claim 1 , of the following formula:

5. The dye of claim 1 , of the following formula:

6. The dye of claim 1 , of the following formula:

7. The dye of claim 1 , wherein one or more R groups are independently selected from phenyl, hexyl, pentyl, methyl, O(methyl),

8. The dye of claim 1 , of the following formula:

wherein R is alkyl.

9. The near infrared dye of claim 8 , of the following formula:

10. The dye of claim 1 , wherein the electron acceptor includes the formula:

11. A compound of the following formula:

12. A compound of the following formula:

13. A compound of the following formula:

14. A compound of the following formula:

15. A dye-sensitized solar cell, comprising:
an anode plate and a cathode plate; a dye of claim 1 ;
a semiconducting oxide;
a redox couple or charge transport material.

16. The solar cell of claim 15 , wherein the semiconducting oxide is TiO 2 , ZnO, or SnO 2 .

17. The solar cell of claim 15 , wherein the dye is of the following formula:

Assignees

• Univ Mississippi

Inventors

• Delcamp Jared
• Huckaba Aron

Classifications

• C07D471/04

  Ortho-condensed systems · CPC title

• C07D495/04 Primary

  Ortho-condensed systems · CPC title

• C07D471/16

  Peri-condensed systems · CPC title

• H01G9/2031

  comprising titanium oxide, e.g. TiO2 (H01G9/2036 takes precedence) · CPC title

• Y02P70/50

  Manufacturing or production processes characterised by the final manufactured product · CPC title