Dye for photoelectric conversion device and photoelectric conversion device

1. A dye for a photoelectric conversion device, wherein the dye has a cyanine structure represented by Formula (1):

where:

R1 and R2 are independently:

a hydroxyl group, a nitro group, a cyano group, or a halogen atom; or

an alkyl group, an alkoxy group, an aryl group, or an arylalkyl group;

a and b are independently an integer of 0 to 4;

R3, R4, R5, and R6 are independently:

a hydrogen atom, a hydroxyl group, a nitro group, a cyano group, or a halogen atom; or

an alkyl group, an alkoxy group, an aryl group, or an arylalkyl group;

at least one of R3 and R4 and at least one of R5 and R6 may be respectively detached to form a double bond, or may be respectively linked with each other to form one or more ring structures;

X1 is a group represented by —C(R7)(R8)-, a group represented by —N(R9)-, a sulfur atom, an oxygen atom, a selenium atom, or a tellurium atom;

X2 is a group represented by —C(R10)(R11)-, a group represented by —N(R12)-, a sulfur atom, an oxygen atom, a selenium atom, or a tellurium atom;

R7, R8, R10, and R11 are independently:

a hydrogen atom or a group represented by Formula (2); or

an alkyl group, an alkoxy group, an aryl group, or an arylalkyl group, except for a group corresponding to the group represented by Formula (2);

R9 and R12 are independently:

a hydrogen atom, a hydroxyl group, a nitro group, a cyano group, or a halogen atom; or

an alkyl group, an alkoxy group, an aryl group, or an arylalkyl group;

Y1 and Y2 are independently:

an alkyl group, an alkoxy group, an aryl group, an arylalkyl group, or an anchor group represented by —R30-Z1 e , where:

R30 is a saturated hydrocarbon group with (e+1) valency; and

Z1 is a carboxylic acid group, a sulfonic acid group, a phosphoric group, a carboxylic acid ion group, a sulfonic acid ion group, or a phosphoric ion group;

at least one of Y1 and Y2 is an anchor group;

Q is a linkage group selected from the group consisting of linkage groups represented by Formulas (7-1) to (7-10):

where R43 to R49 are independently a hydrogen atom, a hydroxyl group, a halogen atom, a cyano group, an aryl group having from 6 to 30 carbon atoms, a diphenyl amino group, an alkyl group having from 1 to 8 carbon atoms, or an alkoxyl group having from 1 to 8 carbon atoms;

An p- is an anion with p valency;

p is 1 or 2;

q is a coefficient to maintain neutral electric charge;

Formula (2) has the following structure:

where:

the bond between L1 and T1 is a double bond or a triple bond;

L1 represents a carbon atom;

T1 represents a carbon atom, an oxygen atom, or a nitrogen atom;

x, y, and z are independently 0 or 1, wherein x and y are 0 if T1 is an oxygen atom, and (y+z) is 0 or 1 if T1 is a nitrogen atom;

R21, R22, and R23 are independently a hydrogen atom, a hydroxyl group, a nitro group, a cyano group, a halogen atom, an alkyl group having 1 to 4 carbon atoms, or a halogenated alkyl group having 1 to 4 carbon atoms;

R24 is a hydrogen atom, a hydroxyl group, a nitro group, a cyano group, a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogenated alkyl group having 1 to 4 carbon atoms, or a halogenated alkoxy group having 1 to 4 carbon atoms;

R21 and R24/R22 and R23 may be respectively linked with each other to form one or more ring structures; and

n is an integer of 0 to 4.

2. The dye for a photoelectric conversion device according to claim 1 , wherein the cyanine structure represented by Formula (1) is a structure represented by Formula (3):

3. The dye for a photoelectric conversion device according to claim 2 , wherein the structure represented by Formula (3) is a structure represented by Formula (4):

where:

ring A is a benzene ring, a naphthalene ring, or a phenanthrene ring.

4. The dye for a photoelectric conversion device according to claim 3 , wherein the structure represented by Formula (4) is a structure represented by Formula (5):

where:

R13 and R14 are independently:

a hydroxyl group, a nitro group, a cyano group, or a halogen atom; or

an alkyl group, an alkoxy group, an aryl group, an arylalkyl group, or a derivative thereof; and

c and d are independently an integer of 0 to 4.

5. The dye for a photoelectric conversion device according to claim 1 , wherein at least one of R7, R8, R10, and R11 is a group represented by Formula (2).

6. The dye for a photoelectric conversion device according to claim 1 , wherein the anchor group is a group represented by —CH 2 —CH 2 —C(═O)—OH or a group represented by —CH 2 —CH 2 —C(═O)—O − .

7. The dye for a photoelectric conversion device according to claim 1 , wherein both Y1 and Y2 are the anchor group.

8. A photoelectric conversion device, comprising:

an electrode having the dye according to claim 1 ; and

a support that supports the dye

9. A photoelectric conversion device, comprising:

an electrode having the dye according to claim 2 ; and

a support that supports the dye,

10. A photoelectric conversion device, comprising:

an electrode having the dye according to claim 3 ; and

a support that supports the dye,

11. A photoelectric conversion device, comprising:

an electrode having the dye according to claim 4 ; and

a support that supports the dye,

12. The photoelectric conversion device according to claim 8 , wherein at least one of R7, R8, R10, and R11 is the group represented by Formula (2).

13. The photoelectric conversion device according to claim 8 , wherein the anchor group is a group represented by —CH 2 —CH 2 —C(═O)—OH or a group represented by —CH 2 —CH 2 —C(═O)—O − .

14. The photoelectric conversion device according to claim 8 , wherein both Y1 and Y2 are an anchor group.

15. The photoelectric conversion device according to claim 8 , wherein the support contains zinc oxide (ZnO).