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KR-102962278-B1 - Composition, membrane, optical filter, solid-state imaging element, image display device, and infrared sensor

KR102962278B1KR 102962278 B1KR102962278 B1KR 102962278B1KR-102962278-B1

Abstract

The present invention provides a composition, a film, an optical filter, a solid-state imaging element, an image display device, and an infrared sensor capable of forming a film with excellent infrared shielding properties. The composition contains an infrared absorber and a curable compound, wherein the infrared absorber includes a compound represented by formula (1), and the content of the compound represented by formula (1) in the total solid content of the composition is 3 mass% or more.

Inventors

  • 야기 카즈나리

Assignees

  • 후지필름 가부시키가이샤

Dates

Publication Date
20260508
Application Date
20211019
Priority Date
20201216

Claims (17)

  1. A composition containing an infrared absorber and a curable compound, The above infrared absorber is a compound that absorbs light with a wavelength of 700 to 2500 nm, and includes a compound represented by formula (1-1). A composition having a content of 3 mass% or more of the compound represented by formula (1-1) in the total solid content of the above composition; In Equation (1-1), Ar 1 and Ar 2 each independently represent nitrogen-containing heterocyclic rings, and R3 and R4 each independently represent substituents, and n3 and n4 each independently represent integers greater than or equal to 0, and Ar 11 and Ar 12 each independently represent an aromatic hydrocarbon ring or a complex aromatic ring, and R 11 and R 12 each independently represent substituents, and n11 and n12 each independently represent integers greater than or equal to 0, and R 111 to R 114 each independently represent an alkyl group or an aryl group, provided that at least one of R 111 and R 112 and at least one of R 113 and R 114 represent an alkyl group, R 111 and R 112 , and R 113 and R 114 may combine to form rings, and Y1 and Y2 , each independently represent -O-, -S-, or -NR Y1- , and RY1 represents a hydrogen atom or substituent, and X1 and X2 each independently represent a hydrogen atom, -BR X1 R X2 , or a metal atom to which a ligand may be coordinated, and R X1 and R X2 each independently represent a hydrogen atom or a substituent, and R X1 and R X2 may combine to form a ring.
  2. A composition containing an infrared absorber and a curable compound, The above infrared absorber is a compound that absorbs light with a wavelength of 700 to 2500 nm, and includes a compound represented by formula (1-1). A composition having a content of 3 mass% or more of the compound represented by formula (1-1) in the total solid content of the above composition; In Equation (1-1), Ar 1 and Ar 2 each independently represent nitrogen-containing heterocyclic rings, and R3 and R4 each independently represent substituents, and n3 and n4 each independently represent integers greater than or equal to 0, and Ar 11 and Ar 12 each independently represent an aromatic hydrocarbon ring or a complex aromatic ring, and R 11 and R 12 each independently represent substituents, and n11 and n12 each independently represent integers greater than or equal to 0, and R 111 ~ R 114 each independently represent a hydrogen atom or a substituent, and R 111 and R 112 , and R 113 and R 114 may combine to form rings, and Y1 and Y2 , each independently represent -O-, -S-, or -NR Y1- , and RY1 represents a hydrogen atom or substituent, and X1 and X2 each independently represent a hydrogen atom, -BR X1 R X2 , or a metal atom to which a ligand may be coordinated, and R X1 and R X2 each independently represent an aryl group or an alkoxy group, and R X1 and R X2 may combine to form a ring.
  3. In claim 1 or claim 2, Y 1 and Y 2 of the above formula (1-1) are -O-, in the composition.
  4. In claim 1 or claim 2, A composition in which X1 and X2 of the above formula (1-1) each independently represent -BR X1 R X2 , R X1 and R X2 each independently represent an aryl group or an alkoxy group, and R X1 and R X2 may be combined to form a ring.
  5. In claim 1, A composition in which R X1 and R X2 each independently represent an aryl group or an alkoxy group, and R X1 and R X2 may be combined to form a ring.
  6. A composition containing an infrared absorber and a curable compound, The above infrared absorber includes a compound represented by formula (1), The content of the compound represented by the formula (1) in the total solid content of the above composition is 3 mass% or more, and A composition in which the maximum absorption wavelength of the compound represented by the above formula (1) in dichloromethane exists in the range of wavelengths 1000 to 1600 nm; In Equation (1), Ar 1 and Ar 2 each independently represent nitrogen-containing heterocyclic rings that may be condensed to form polycyclic rings, and R1 and R2 each independently represent substituents, and n1 and n2 each independently represent integers greater than or equal to 0, and Y1 and Y2 , each independently represent -O-, -S-, or -NR Y1- , and RY1 represents a hydrogen atom or substituent, and X1 and X2 each independently represent a hydrogen atom, -BR X1 R X2 , or a metal atom to which a ligand may be coordinated, and R X1 and R X2 each independently represent a hydrogen atom or a substituent, and R X1 and R X2 may combine to form a ring.
  7. In claim 1 or claim 2, The above infrared absorber is a composition comprising a compound other than the compound represented by the above formula (1-1).
  8. In claim 1, claim 2, or claim 6, A composition further comprising a chromatic coloring agent.
  9. In claim 1, claim 2, or claim 6, The above-mentioned curable compound is a composition comprising a resin having acid groups.
  10. In claim 1, claim 2, or claim 6, The above-mentioned curable compound is a composition comprising a polymerizable compound.
  11. In claim 1, claim 2, or claim 6, The above-mentioned curable compound is a composition comprising a resin having a glass transition temperature of 150°C or higher.
  12. In claim 1, claim 2, or claim 6, Composition for infrared sensors.
  13. A membrane obtained using the composition described in claim 1, claim 2, claim 5, or claim 6.
  14. An optical filter comprising a membrane as described in claim 13.
  15. A solid-state imaging element comprising a film described in claim 13.
  16. An image display device comprising a film described in claim 13.
  17. An infrared sensor comprising the membrane described in claim 13.

Description

Composition, membrane, optical filter, solid-state imaging element, image display device, and infrared sensor The present invention relates to a composition comprising an infrared absorber and a curable compound. In addition, the present invention relates to a membrane, an optical filter, a solid-state imaging element, an image display device, and an infrared sensor using the above-described composition. In video cameras, digital still cameras, and mobile phones equipped with camera functions, solid-state image sensors such as CCDs (charge-coupled devices) or CMOS (complementary metal-oxide-semiconductor) are used. These solid-state image sensors use silicon photodiodes that are sensitive to infrared rays in their light-receiving portions. For this reason, an infrared blocking filter is provided to correct visual sensitivity. The infrared blocking filter is manufactured using a composition containing an infrared absorber and a curable compound. In addition, infrared transmission filters are also manufactured using a composition comprising an infrared absorber and a curable compound. By incorporating an infrared absorber into the infrared transmission filter, the infrared region of the light (infrared) transmitted by the infrared transmission filter can be shifted toward a longer wavelength. In this way, optical filters such as infrared blocking filters or infrared transmitting filters are formed using a composition containing an infrared absorber and a curable compound. Non-patent document 1 describes that a compound of the following structure has a maximum absorption wavelength at 922 nm in dichloromethane, and no significant absorption band in the visible region. [Chemical Formula 1] FIG. 1 is a schematic diagram showing one embodiment of an infrared sensor. The contents of the present invention will be described in detail below. In this specification, "~" is used to mean including the values described before and after it as lower and upper limits. In the notation of groups (atomic groups) in this specification, notations that do not specify substitution or non-substitution include groups (atomic groups) that have substituents along with groups (atomic groups) that do not have substituents. For example, "alkyl group" includes not only alkyl groups that do not have substituents (non-substituted alkyl groups) but also alkyl groups that have substituents (substituted alkyl groups). In this specification, the term "exposure" includes not only exposure using light but also drawing using particle beams such as electron beams and ion beams, unless specifically explained otherwise. In addition, light used for exposure may include active light or radiation such as emission spectra of mercury lamps, far ultraviolet light represented by excimer lasers, extreme ultraviolet light (EUV light), X-rays, and electron beams. In this specification, "(meth)acrylate" represents either acrylate or methacrylate, "(meth)acryl" represents either acrylic or methacryl, and "(meth)acryloyl" represents either acryloyl or methacryloyl. In this specification, the weight average molecular weight and the number average molecular weight are defined as polystyrene equivalent values in gel permeation chromatography (GPC) measurements. In the present specification, Me represents a methyl group, Et represents an ethyl group, Bu represents a butyl group, and Ph represents a phenyl group. In this specification, infrared refers to light (electromagnetic wave) with a wavelength of 700 to 2500 nm. In this specification, the term "total solid content" refers to the total mass of the components excluding the solvent from the total components of the composition. In this specification, the term "pigment" refers to a color material that is difficult to dissolve in a solvent. In this specification, the term "process" includes not only independent processes but also cases where the process cannot be clearly distinguished from other processes, provided that the intended function of the process is achieved. <Composition> The composition of the present invention is a composition containing an infrared absorber and a curable compound, and The infrared absorber includes a compound represented by formula (1), The composition is characterized by having a content of 3 mass% or more of the compound represented by formula (1) in the total solid content of the composition. According to the composition of the present invention, a film with excellent infrared shielding properties can be formed. In particular, a film with excellent shielding properties for infrared rays with longer wavelengths than 1100 nm can be formed. Although the detailed reason for obtaining such effects is unclear, since the composition of the present invention contains 3 mass% or more of the compound represented by Formula (1) in the total solid content of the composition, it is presumed that when a film is formed using the composition, the aggregation of the compound represented by Formula (1)