Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I) or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, A, M, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided. ##STR00001##

The invention relates to a plant cultivation method for modifying at least one agricultural property of a cultivated plant where the agricultural property is susceptible to modification by irradiating at least part of the plant with light comprising the steps of (a) providing at least one light source emitting a first spectrum comprising a wavelength of 300 to 900 nm; (b) subjecting said first spectrum to a partial or full conversion to obtain a second spectrum comprising a wavelength of 680 to 900 nm by means of at least one color converter wherein the obtained second spectrum has higher intensities of light at wavelengths of 680 to 900 nm compared to the first spectrum; and (c) irradiating at least part of the cultivated plant with the second spectrum obtained in step (b); wherein the at least one color converter comprises in a polymeric matrix material at least one terrylene diimide compound of formula (I) wherein the variables are as defined in the claims and the description. The present invention also relates to the use of said terrylene diimide compound of formula (I) in a color converter for providing horticulture light comprising a wavelength in the range from 680 to 900 nm.

##STR00001##

The present invention provides: an aminocoumarin compound having a structure represented by the following formula (1); and an aminocoumarin compound-containing resin particle containing the aminocoumarin compound and a resin particle containing the aminocoumarin compound. In formula (1), Rs each independently represent a hydrogen atom or a methyl group, Q represents a sulfur atom, an oxygen atom, or N—R.sup.1, and R.sup.1 represents a hydrogen atom or a methyl group. The aminocoumarin compound of the present invention is a fluorescent dye that has a longer excitation wavelength than a conventionally known sulfonated coumarin-based compound and is effectively excited at a wavelength of 475 nm or more, particularly at a wavelength around 500 nm. The aminocoumarin compound of the present invention is a fluorescent dye that is excited, for example, at a wavelength of 475 to 510 nm and can be observed in a green light emission region of 510 to 540 nm using the wavelength characteristic, and can be expected to be suitably utilized in immunostaining or the like.

A composite pigment includes first and second cholesteric liquid crystal pigments. The first cholesteric liquid crystal pigment has a center wavelength of a selective reflection band within a wavelength range of 400 nm or more and 800 nm or less and a selective reflection bandwidth of 150 nm or less. The second cholesteric liquid crystal pigment has a selective reflection bandwidth of 200 nm or more within a wavelength range of 400 nm or more and 800 nm or less. The selective reflection band of the first cholesteric liquid crystal pigment and a selective reflection band of the second cholesteric liquid crystal pigment at least partially overlap with each other. A containing amount of the first cholesteric liquid crystal pigment relative to a total amount of the first and second cholesteric liquid crystal pigments is more than 0% by weight and 30% by weight or less.

Lyophilized chromophoric polymer dot compositions are provided. Also disclosed are methods of making and using the lyophilized compositions, methods of dispersing the lyophilized compositions in aqueous solutions and kits supplying the compositions.

The present invention relates to polymers comprising a repeating unit of the formula—[Ar.sup.3].sub.c—[Ar.sup.2].sub.b—[Ar.sup.1].sub.a—Y(R.sup.1).sub.n1 (R.sup.2).sub.n2—[Ar.sup.1′].sub.a—[Ar.sup.2′].sub.b′—[Ar.sup.3′].sub.c′— (I), wherein γ is a bivalent heterocyclic group, or ring system, which may optionally be substituted, Ar.sup.1, Ar.sup.1′Ar.sup.2, Ar.sup.2′, Ar.sup.3 and Ar.sup.3′ are independently of each other a C.sub.6-C.sub.24 arylen group, which can optionally be substituted, or a C.sub.2-C.sub.30 heteroarylen group, which can optionally be, Formula (1), substituted; at least one of R1 and R2 is a group of formula (II); and their use as organic semiconductor in organic devices, especially in organic photovoltaics and photodiodes, or in a device containing a diode and/or an organic field effect transistor. The polymers according to the invention can have excellent solubility in organic solvents and excellent film-forming properties. In addition, high efficiency of energy conversion, excellent field-effect mobility, good on/off current ratios and/or excellent stability can be observed, when the polymers according to the invention are used in organic field effect transistors, organic photovoltaics and photodiodes. ##STR00001##

Polymers comprising first and second fluorescent or colored moieties on the polymer backbone and two or more charged moieties on the polymer backbone between the first and second colored or fluorescent moieties are provided. The polymers are useful as fluorescent or colored dyes. Methods associated with preparation and use of such polymers are also provided.

Compounds useful as fluorescent or colored dyes are disclosed. The compounds have the following structure (I): (I) or a stereoisomer, tautomer or salt thereof, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, L.sup.1a, L.sup.1b, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, L.sup.7, M.sup.1, M2, q, w, m and n are as defined herein. Methods associated with preparation and use of such compounds are also provided.

##STR00001##

Provided is a coloring composition capable of forming a cured film having desired spectral characteristics even for thin-film. In addition, provided are a cured film, a pattern forming method, a color filter, a solid-state imaging element, and an image display device. The coloring composition contains: a pigment A having a structure in which an aromatic ring group into which a group with an oxygen atom, a sulfur atom, or a nitrogen atom bonded to an aromatic ring is introduced is bonded to a diketopyrrolopyrrole skeleton; and a compound having a curable group. A content of the pigment A in a total solid content of the coloring composition is 40% by mass or more.

Provided are a composition including a coloring agent having a structure represented by Formula (1), an organic solvent, and a curable compound, in which a solubility of the coloring agent having a structure represented by Formula (1) in propylene glycol methyl ether acetate at 25° C. is 100 mg/L or less; a compound having a structure represented by Formula (4-1); a film formed of the composition; a near-infrared cut filter; a pattern forming method; a laminate; a solid-state imaging element; an infrared sensor; an image display device; a camera module; and a novel compound.

(Dye).sub.n-L.sup.1  (1)

In Formula (1), L.sup.1 represents an n-valent linking group, n represents an integer of 2 to 10, where in a case where n is 2, L.sup.1 may be a single bond, and Dye's each independently represent a coloring agent structure having a maximal absorption wavelength in a wavelength range of 650 nm to 2,000 nm.