Co-topo-polymeric indicator compositions and methods for making and using the same are provided. Indicator compositions of the invention include a polymer and undergo a color change, which may be reversible or irreversible, in response to an applied stimulus, e.g., temperature. Aspects of methods of producing the compositions include setting a fluid co-topo-polymeric precursor composition into a solid product and then subjecting the solid product (either immediately or after a delay period) to polymerizing conditions to produce the desired indicator composition. Also provided are indicator devices that include the indicator compositions of the invention. The compositions of the invention find use in a variety of different applications.

Co-topo-polymeric indicator compositions and methods for making and using the same are provided. Indicator compositions of the invention include a polymer and undergo a color change, which may be reversible or irreversible, in response to an applied stimulus, e.g., temperature. Aspects of methods of producing the compositions include setting a fluid co-topo-polymeric precursor composition into a solid product and then subjecting the solid product (either immediately or after a delay period) to polymerizing conditions to produce the desired indicator composition. Also provided are indicator devices that include the indicator compositions of the invention. The compositions of the invention find use in a variety of different applications.

A composition that can form a photoelectric conversion layer having an electricity storage function is provided. The composition comprises at least a semiconductor (e.g., a titanium oxide particle) and an ionic polymer (e.g., a fluorine-series resin having a sulfo group), and the ratio of the ionic polymer relative to 1 part by weight of the semiconductor is not less than 0.05 parts by weight. The composition may further contain a dye (a sensitizing dye). An electrode provided with a photoelectric conversion layer formed from the composition can be used in combination with, in particular, an electrode having a porous layer to give a photoelectric conversion element having an excellent electricity storage function.

A composition that can form a photoelectric conversion layer having an electricity storage function is provided. The composition comprises at least a semiconductor (e.g., a titanium oxide particle) and an ionic polymer (e.g., a fluorine-series resin having a sulfo group), and the ratio of the ionic polymer relative to 1 part by weight of the semiconductor is not less than 0.05 parts by weight. The composition may further contain a dye (a sensitizing dye). An electrode provided with a photoelectric conversion layer formed from the composition can be used in combination with, in particular, an electrode having a porous layer to give a photoelectric conversion element having an excellent electricity storage function.

A colored composition of the present invention includes a dye compound having an anionic moiety including at least one of a structure represented by the following General Formula (A1), a structure represented by the following General Formula (A2), and a structure containing a boron atom, and a dye structure having a cationic moiety, in which the anionic moiety and the cationic moiety are bonded to each other via a covalent bond and present in the same molecule; a curable compound; and a solvent.

##STR00001## (in General Formula (A1), R.sup.1 and R.sup.2 each independently represent SO.sub.2 or CO)

##STR00002## (in General Formula (A2), R.sup.3 represents SO.sub.2 or CO; and R.sup.4 and R.sup.5 each independently represent SO.sub.2, CO, or CN)

A colored composition of the present invention includes a dye compound having an anionic moiety including at least one of a structure represented by the following General Formula (A1), a structure represented by the following General Formula (A2), and a structure containing a boron atom, and a dye structure having a cationic moiety, in which the anionic moiety and the cationic moiety are bonded to each other via a covalent bond and present in the same molecule; a curable compound; and a solvent.

##STR00001## (in General Formula (A1), R.sup.1 and R.sup.2 each independently represent SO.sub.2 or CO)

##STR00002## (in General Formula (A2), R.sup.3 represents SO.sub.2 or CO; and R.sup.4 and R.sup.5 each independently represent SO.sub.2, CO, or CN)

An organic compound represented by general formula (1) is a novel organic compound having an absorption band in the near infrared region, and is useful for infrared absorbing dyes, optical films, and organic electronic devices such as photoelectric conversion elements, wherein R.sup.1 to R.sup.18 each independently represent a hydrogen atom, an aryl group, a heteroaryl group, an alkyl group, a cycloalkyl group, a halogen atom, a hydroxy group, an alkoxy group, a mercapto group, an alkylthio group, a nitro group, a substituted amino group, an amide group, an acyl group, a carboxyl group, an acyloxy group, a cyano group, a sulfo group, a sulfamoyl group, an alkylsulfamoyl group, a carbamoyl group, or an alkylcarbamoyl group; and X represents a substituted or unsubstituted methine group, a silylidyne group, a germylidyne group, a stannylidyne group, a nitrogen atom, a phosphorus atom, an arsenic atom, or an antimony atom.

##STR00001##

The present disclosure relates to new metal complexes, including derivatives thereof, methods of making the metal complexes, and uses thereof, including uses, for example, as photosensitizers and as photocatalysts. In an embodiment, a metal complex having the structure of Formula (I): a salt, hydrate, solvate, tautomer, optical isomer, or combination thereof. ##STR00001##

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.

The present invention relates to an organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound according to the present invention can be comprised in a light-emitting layer or an electron buffer layer, and is effective to produce an organic electroluminescent device having low driving voltage, excellent current and power efficiencies, and significantly improved operational lifespan.