Abstract: A surface emitting-type electroluminescent device capable of being driven by a DC power source and excellent in durability is provided. A surface emitting-type electroluminescent device containing a stacked structure in which a transparent electrical conductor layer, a transparent semiconductor layer and/or a transparent insulator layer, a light-emitting layer and a back electrode layer are arrayed in this order, the transparent electrical conductor layer, the transparent semiconductor layer and the transparent insulator layer each containing a metal oxide.

Abstract: To provide an electroluminescent device excellent in color rendition, the electroluminescent device has at least two luminescent local maxima in a visible range, the at least two luminescent local maxima including a first luminescent local maximum and a second luminescent local maximum, the first and second luminescent local maxima have the two largest values of the at least two luminescent local maxima, wherein the electroluminescent device has the first luminescent local maximum in a range of from 450 to 530 nm, and the electroluminescent device has the second local luminescent local maximum in a range of 605 nm or more.

Abstract: A solar cell, comprising: a metal substrate having an insulating anodic oxidation film; and a photoelectric conversion layer provided on the metal substrate, whereon the anodic oxidation film has a surface roughness of 0.5 nm to 2 ?m and the photoelectric conversion layer comprises a chalcopyrite semiconductor material having a band gap of 1.3 eV to 1.5 eV.

Abstract: A substrate for a solar cell, containing a metal substrate and an insulating anodic oxidation film provided on the metal substrate, wherein the thickness TO of the anodic oxidation film and the thickness TB of a barrier layer of the anodic oxidation film are inside a region I surrounded by the point A (TO=0.01 ?m, TB=0.01 ?m), the point B (TO=2 ?m, TB=2 ?m), the point C (TO=100 ?m, TB=2 ?m) and the point D (TO=100 ?M, TB=0.01 ?m) shown in FIG. 1 (provided that the region includes its boundary lines); and a solar cell using the same.

Abstract: A substrate for a solar cell, containing a metal substrate and an anodic oxidation film provided on the metal substrate, wherein on a surface of the anodic oxidation film, pores in a diameter of 10 nm to 600 nm are formed; and a solar cell using the same.

Abstract: A substrate for a solar cell having a metal substrate, a first insulating oxide film formed on the metal substrate by anodic oxidation, and a second insulating film, wherein the first insulating oxide film has pores and the pores are sealed with the second insulating film at a sealing ratio of 5 to 80%.

Abstract: A silver halide color photosensitive material for being subjected to a color development within nine seconds of being imagewise exposed, and comprising a support and a photograph constitution layer provided on the support, the photograph constitution layer containing at least one layer that comprises a yellow dye-forming coupler, at least one layer that comprises a magenta dye-forming coupler, at least one layer that comprises a cyan dye-forming coupler, and at least one non-photosensitive hydrophilic colloid layer. The coupler-comprising layers respectively include silver halide emulsions, and at least one of the silver halide emulsions has the characteristics of: (i) a silver chloride content of 90 mol % or more; and (ii) containing at least one specific metal complexes. The color development is preferably completed within 28 seconds.

Abstract: A surface emitting-type electroluminescent device capable of being driven by a DC power source and excellent in durability is provided. A surface emitting-type electroluminescent device containing a stacked structure in which a transparent electrical conductor layer, a transparent semiconductor layer and/or a transparent insulator layer, a light-emitting layer and a back electrode layer are arrayed in this order, the transparent electrical conductor layer, the transparent semiconductor layer and the transparent insulator layer each containing a metal oxide.

Abstract: In an electroluminescent device which is applied to a backlight and a display device and characterized in that a flexible material construction using a plastic substrate is enabled and the device can be produced at a low cost through a relatively simple step without using a vacuum unit and also in that the emission color of the device can be easily controlled by mixing a plurality of fluorescent material particles differing in the emission color or by using a fluorescent dye for the color conversion, the present invention provides a surface emitting-type electro-luminescent device capable of using a low voltage AC power source, realizing uniform brightness and having a large-area emission surface.

Abstract: To provide a silver halide color photographic light-sensitive material having higher sensitivity and higher contrast and free of reciprocity failure over a wide range of exposure illuminance, A silver halide emulsion comprising a silver halide grain containing at least two metal complexes each giving an average electron releasing time of 10?5 to 3 seconds, the ratio in the average electron releasing time between these two metal complexes being at least 3 times or more and in these metal complexes, the content of the metal complex having a shorter average electron releasing time being 3 times or more as the molar ratio to the content of the metal complex having a longer average electron releasing time.

Abstract: To provide an electroluminescent device excellent in color rendition, the electroluminescent device has at least two luminescent local maxima in a visible range, the at least two luminescent local maxima including a first luminescent local maximum and a second luminescent local maximum, the first and second luminescent local maxima have the two largest values of the at least two luminescent local maxima, wherein the electroluminescent device has the first luminescent local maximum in a range of from 450 to 530 nm, and the electroluminescent device has the second local luminescent local maximum in a range of 605 nm or more.

Abstract: A light-sensitive silver halide grain having an absorption band in a wavelength region of visible light is prepared to provide a silver halide photographic material having high spectral sensitivity in the visible region. The silver halide photographic material contains the light-sensitive silver halide grain having a metal complex dopant having an absorption band which has a molar absorption coefficient of 10,000 or more in a wavelength region of visible light in an ultraviolet-visible absorption spectrum of a solution thereof.

Abstract: Provided are a silver halide photographic emulsion containing a metal complex represented by the following formula (I): Mm[IrCln(L1)k(L2)6-n-k]??(I) wherein, M represents a cation or anion, m represents an integer of 0 to 4, n represents an integer of 3 to 5, k represents an integer of 0 to 3, L1 represents a ligand selected from the group consisting of pyrroles, thiophenes, pyrazoles, isoxazoles, isothiazoles, imidazole, oxazoles, furazanes, heterocycles having at least 3 hetero atoms and ureas, L2 represents an inorganic ligand other than Cl with the proviso that when k represents 0, L2 represents none of F, Br, I, NO, H2O, CO and C2O4; and a metal complex represented by the following formula (IV): Nk?[IrX6-n?Qn?]??(IV) wherein, N represents a counter cation; X represents a halogen ion; Q represents a compound which contains at least three atoms selected from nitrogen and sulfur atoms, and 5 or less carbon atoms, may contain another atom, and exhibits a ratio of (the number of carbon atoms)/(the total n

Abstract: A silver halide color photosensitive material for being subjected to a color development within nine seconds of being imagewise exposed, and comprising a support and a photograph constitution layer provided on the support, the photograph constitution layer containing at least one layer that comprises a yellow dye-forming coupler, at least one layer that comprises a magenta dye-forming coupler, at least one layer that comprises a cyan dye-forming coupler, and at least one non-photosensitive hydrophilic colloid layer. The coupler-comprising layers respectively include silver halide emulsions, and at least one of the silver halide emulsions has the characteristics of: (i) a silver halide content of 90 mol % or more; and (ii) containing at least one specific metal complexes. The color development is preferably completed within 28 seconds.

Abstract: A silver halide color photosensitive material for being subjected to a color development within nine seconds of being imagewise exposed, and comprising a support and a photograph constitution layer provided on the support, the photograph constitution layer containing at least one layer that comprises a yellow dye-forming coupler, at least one layer that comprises a magenta dye-forming coupler, at least one layer that comprises a cyan dye-forming coupler, and at least one non-photosensitive hydrophilic colloid layer. The coupler-comprising layers respectively include silver halide emulsions, and at least one of the silver halide emulsions has the characteristics of: (i) a silver halide content of 90 mol % or more; and (ii) containing at least one specific metal complexes. The color development is preferably completed within 28 seconds.

Abstract: A light-sensitive silver halide grain containing at least one metal complex, wherein when an a-axis, a b-axis and a c-axis of a silver halide crystal lattice are each established taking as an origin a central metal of the metal complex incorporated into the silver halide grain, the metal complex has in a ligand thereof a site which can form any bond of a covalent bond, a dative bond and an ionic bond, or a bond in a mixed form of these bonds with a silver ion on a lattice point which does not exist on any of the a-axis, the b-axis and the c-axis. The silver halide photographic material has no reciprocity failure over a wide range of exposure illuminations without desensitization and decrease of contrast on the low intensity side.

Abstract: To provide a silver halide color photographic light-sensitive material having higher sensitivity and higher contrast and free of reciprocity failure over a wide range of exposure illuminance, A silver halide emulsion comprising a silver halide grain containing at least two metal comp10exes each giving an average electron releasing time of 10−5 to 3 seconds, the ratio in the average electron releasing time between these two metal complexes being at least 3 times or more and in these metal complexes, the content of the metal complex having a shorter average electron releasing time being 3 times or more as the molar ratio to the content of the metal complex having a longer average electron releasing time.

Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the material is contained at least one complex selected from complexes having a compound represented by the following formula (I) as at least one of their respective ligands or complexes having a diketone compound as at least one of their respective ligands: wherein X represents an atom or atomic group bridging two pyridine rings, each of R1 to R4 represents a hydrogen atom or a substituent group, and each of R1′ to R2′ represents a hydrogen atom or a substituent group.

Abstract: The Silver halide grains in the silver halide emulsion is disclosed, comprising silver halide grains containing three or more kinds of transition metal complexes each having a different electron-releasing time respectively classified into any of Class A (100 seconds or more), Class B (more than {fraction (1/10)} seconds and less than 100 seconds), Class C (more than {fraction (1/1000)} seconds and {fraction (1/10)} seconds or less) and Class D ({fraction (1/1000)} seconds or less).

Abstract: The present invention provides a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion contained in the silver halide emulsion layer comprises silver halide grains having a silver chloride content of 90 mol % or more, and the silver halide emulsion further contains a metal complex having H2O as a ligand. It also provides a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion contained in the silver halide emulsion layer contains a metal complex having O2? as a ligand.