Near-infrared absorption composition, cured film, near-infrared absorption filter, solid-state imaging device, and infrared sensor

Patent metadata

Field	Value
Publication number	US-10585221-B2
Application number	US-201715684164-A
Country	US
Kind code	B2
Filing date	Aug 23, 2017
Priority date	Feb 27, 2015
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

To provide a near-infrared absorption composition capable of forming a film having excellent visible transparency and near-infrared shieldability, a cured film, a near-infrared absorption filter, a solid-state imaging device, and an infrared sensor. A near-infrared absorption composition includes a compound represented Formula (1) and a resin, the compound has a maximum absorption wavelength in a wavelength range of 750 to 830 nm in a film in a case where the film is formed using the near-infrared absorption composition, and a value obtained by dividing an absorbance at a wavelength of 555 nm by an absorbance at the maximum absorption wavelength is 0.10 or less.

First claim

What is claimed is:

1. A near-infrared absorption composition comprising:
a compound represented by Formula (1); and
a resin,
wherein the compound has a maximum absorption wavelength in a wavelength range of 750 to 830 nm in a film in a case where the film is formed using the near-infrared absorption composition, and a value obtained by dividing an absorbance at a wavelength of 555 nm by an absorbance at the maximum absorption wavelength is 0.10 or less,

in the formula, R 1a and R 1b each independently represent an alkyl group, an aryl group, or a heteroaryl group,
R 2 and R 3 each independently represent a hydrogen atom or a substituent,
R 4 to R 7 each independently represent a substituent, and
Ar 1 and Ar 2 each independently represent any one of Formulae (A) to (C):

wherein:
in Formula (A), —X A — represents —O—, —N(R 30 )—, or —C(R 31 )(R 32 )—, R 11 to R 14 each independently represent a hydrogen atom or a substituent, R 30 represents a hydrogen atom, an alkyl group, or an aryl group, R 31 and R 32 each independently represent an alkyl group or an aryl group, and * represents a bonding position to Formula (1),
in Formula (B), R 15 to R 17 each independently represent a hydrogen atom or a substituent, any two of R 15 to R 17 may be bonded to each other to form a ring, and * represents a bonding position to Formula (1), and
in Formula (C), —X C — represents —O— or —N(R 33 )—, R 18 to R 23 each independently represent a hydrogen atom or a substituent, R 33 represents a hydrogen atom, an alkyl group, or an aryl group, and * represents a bonding position to Formula (1).

2. The near-infrared absorption composition according to claim 1 ,
wherein in Formula (1), R 4 to R 7 each independently represent an aryl group or a heteroaryl group.

3. The near-infrared absorption composition according to claim 1 ,
wherein in Formula (1), R 2 and R 3 each independently represent an electron-withdrawing group.

4. The near-infrared absorption composition according to claim 1 ,
wherein in Formula (1), R 2 and R 3 are cyano groups.

5. The near-infrared absorption composition according to claim 1 ,
wherein in Formula (1), R 1a and R 1b each independently represent a branched alkyl group, or an aryl group or a heteroaryl group having, as a substituent, a group having a branched alkyl structure.

6. The near-infrared absorption composition according to claim 1 , further comprising:
an organic solvent.

7. The near-infrared absorption composition according to claim 1 ,
wherein the resin is at least one selected from a (meth)acrylic resin, a polyester resin, and an epoxy resin.

8. The near-infrared absorption composition according to claim 1 ,
wherein the resin includes a resin having a polymerizable group.

9. The near-infrared absorption composition according to claim 1 , further comprising:
a curable compound.

10. A cured film which is prepared using the near-infrared absorption composition according to claim 1 .

11. A near-infrared absorption filter comprising:
the cured film according to claim 10 .

12. A solid-state imaging device comprising:
the cured film according to claim 10 .

13. An infrared sensor comprising:
the cured film according to claim 10 .

14. The near-infrared absorption composition according to claim 1 , wherein in Formula (A), any two of R 11 to R 14 are not bonded to each other to form a ring.

15. The near-infrared absorption composition according to claim 1 , wherein in Formula (1), Ar 1 and Ar 2 each independently represent any one of Formulae (A) or (B).

Assignees

• Fujifilm Corp

Inventors

• Matsumura Tokihiko
• Oota Kazuya
• Jimbo Yoshihiro
• Sasaki Daisuke

Classifications

• G02B5/223 Primary

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• G02B5/208

  for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation · CPC title

• H01L27/144

  Electricity · mapped topic

• H01L27/14685

  Electricity · mapped topic

• H01L27/14621

  Electricity · mapped topic