Polymeric compound and electronic element

Patent metadata

Field	Value
Publication number	US-9290510-B2
Application number	US-201013504030-A
Country	US
Kind code	B2
Filing date	Oct 22, 2010
Priority date	Oct 29, 2009
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

A polymer compound including a structural unit represented by formula (I) or a structural unit represented by formula (III) and a structural unit represented by formula (II) has high photoelectric conversion efficiency when used in an organic photoelectric conversion device.

wherein Ar 1 and Ar 2 are the same or different and represent trivalent heterocyclic group; Z represents a divalent group; Y represents a divalent heterocyclic group;

wherein Ar 1 and Ar 2 are the same or different and represent trivalent heterocyclic group; Z represents a divalent group; Y represents a divalent heterocyclic group; two Ar 1 s may be the same or different; two Ar 2 s may be the same or different; and two Z's may be the same or different.

-D-  (II)

wherein D represents an arylene group or a heteroarylene group having a fused ring, provided that a divalent heterocyclic group represented by Y is different from a group represented by D.

First claim

The invention claimed is:

1. A polymer compound including a structural unit represented by formula (V) and a structural unit represented by formula (II):

wherein X represents a sulfur atom, an oxygen atom, a selenium atom, —NH— or —N(R a )—; R a represents a substituent; Y represents a divalent heterocyclic group represented by formula (Y-1) to (Y-5); Z represents a divalent group represented by (Z-1) and two Zs may be the same or different;
wherein the divalent heterocyclic group represented by Y is each of groups represented by formulas (Y-1) to (Y-5):

wherein X′ represents a sulfur atom, an oxygen atom, a selenium atom, —NH— or —N(R a ); R a represents a substituent; R 11 to R 17 are the same or different and represent a hydrogen atom or a substituent; R 11 and R 12 may be connected to each other to form a cyclic structure; and plural X's are present, they may be the same or different;

wherein R 1 and R 2 are the same or different and represent a hydrogen atom or a substituent;

wherein D represents an arylene group or a fused ring heteroarylene group, provided that a divalent heterocyclic group represented by Y is different from a group represented by D, and a group represented by D is different from the group represented by (VA):

wherein Y and Z have the same meanings as above.

2. The polymer compound according to claim 1 , wherein a structural unit represented by formula (II) is a group represented by formula (D-4):

wherein d″ ring represents a benzene ring which may have a substituent, a biphenyl ring which may have a substituent, a terphenyl ring which may have a substituent, or a fused ring containing a hetero atom, which may have a substituent.

3. The polymer compound according to claim 1 , wherein a polystyrene-equivalent number average molecular weight is 3,000 or more.

4. A thin film comprising the polymer compound according to claim 1 .

5. A composition comprising the polymer compound according to claim 1 and an electron accepting compound.

6. The composition according to claim 5 , wherein the electron accepting compound is a fullerene derivative.

7. A thin film comprising the composition according to claim 5 .

8. A solution comprising the composition according to claim 5 and a solvent.

9. An electronic element using the thin film according to claim 4 .

10. The polymer compound according to claim 1 , wherein a structural unit represented by formula (II) is each of groups represented by formulas (D-1) to (D-3):

wherein d and d′ ring in formulas (D-1) to (D-3) represents an aromatic ring which may have a substituent; plural d rings may be the same or different; plural d′ rings may be the same or different; R 21 and R 22 are the same or different and represent a hydrogen atom or a substituent; and n1 is an integer of 1 or more.

Assignees

• Ohya Kenichiro
• Yoshimura Ken
• Sumitomo Chemical Co

Inventors

• Ohya Kenichiro
• Yoshimura Ken

Classifications

• C08G61/126 Primary

  with a five-membered ring containing one sulfur atom in the ring · CPC title

• C07F5/04

  Esters of boric acids · CPC title

• C08G2261/3243

  containing one or more sulfur atoms as the only heteroatom, e.g. benzothiophene · CPC title

• C07D495/04 Primary

  Ortho-condensed systems · CPC title

• C09B69/102

  containing a perylene dye · CPC title