Abstract: An organic semiconductor device according to the present invention includes a semiconductor layer 14 interposed between two electrodes 12 and 15, and the semiconductor layer 14 contains a trioxotriangulene (TOT) derivative, which is a neutral radical compound, as a semiconductor material. The semiconductor layer 14 acts as an n-type semiconductor and coacts with a p-type semiconductor layer 13 to exhibit a photoelectric conversion effect. The organic semiconductor device is characterized as including a semiconductor layer that has a narrow band gap, has light absorption performance in an infrared region, and is high in carrier mobility.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: An organic semiconductor device according to the present invention includes a semiconductor layer 14 interposed between two electrodes 12 and 15, and the semiconductor layer 14 contains a trioxotriangulene (TOT) derivative, which is a neutral radical compound, as a semiconductor material. The semiconductor layer 14 acts as an n-type semiconductor and coacts with a p-type semiconductor layer 13 to exhibit a photoelectric conversion effect. The organic semiconductor device is characterized as including a semiconductor layer that has a narrow band gap, has light absorption performance in an infrared region, and is high in carrier mobility.

Abstract: A theme of the present invention is to provide a new transition metal complex, useful as a photosensitizer dye for a photoelectric conversion element having an excellent durability and a high photoelectric conversion characteristic. The present invention provides a bivalent transition metal complex constituted of (i) a bipyridyl polyacidic ligand, such as a dicarboxybipyridyl (dcbpy) ligand, as an adsorption site for adsorption onto titanium dioxide particle surfaces; (ii) a ligand, selected from the group consisting of an isothiocyanato group, an isocyanato group, and an isoselenocyanato group and enabling absorption and excitation at long wavelengths and charge transfer; and (iii) a bipyridyl (bpy) ligand, having an alkyl group or an alkoxy group, preferably a long-chain alkyl group, and a conjugately bonded thienylvinylene group, aminophenylenevinylene group, etc.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles, an electrolyte composition containing an ionic liquid and oxide semiconductor particles and optionally containing conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: A theme of the present invention is to provide a new transition metal complex, useful as a photosensitizer dye for a photoelectric conversion element having an excellent durability and a high photoelectric conversion characteristic. The present invention provides a bivalent transition metal complex constituted of (i) a bipyridyl polyacidic ligand, such as a dicarboxybipyridyl (dcbpy) ligand, as an adsorption site for adsorption onto titanium dioxide particle surfaces; (ii) a ligand, selected from the group consisting of an isothiocyanato group, an isocyanato group, and an isoselenocyanato group and enabling absorption and excitation at long wavelengths and charge transfer; and (iii) a bipyridyl (bpy) ligand, having an alkyl group or an alkoxy group, preferably a long-chain alkyl group, and a conjugately bonded thienylvinylene group, aminophenylenevinylene group, et.

Abstract: The present invention relates to a new optically active rare earth complex (1) represented by a general formula (1); (in the formula, X1 and X2 each independently represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or an alkoxyl group having 1 to 4 carbon atoms; Y1, Y2, Y3, and Y4, each independently represents a hydrogen atom, a halogen atom, or an alkyl group having 1 to 4 carbon atoms; R1 represents an alkyl group having 1 to 8 carbon atoms, a fluorine-substituted alkyl group having 1 to 8 carbon atoms, or a phenyl group: R2 is a group selected from the group consisting of (a) cyclopentadienyl groups, (b) phenyl groups, and (c) naphthyl groups).

Abstract: The present invention provides a fluorescent substance excellent in thermal resistance, which can be uniformly dispersed into plastic materials, and has a high fluorescence intensity even after experienced heat history in plastic forming processes. More specifically, the present invention provides a fluorescent substance containing a rare earth complex having benzophenone or benzoyl substituted with an alkyl group, a cycloalkyl group, an acyl group or an alkoxy group having a carbon number of 1 to 20 as a skeletal structure, in which a plurality of rare earth ions are coordinated with one or more types of molecules having a photosensitizing function.

Abstract: A crystalline rare-earth oxide or sulfide which has an average particle diameter of 10 nm or less and in which the rare-earth element has a low valance, in particular, crystalline EuO or EuS of nano size. The rare-earth oxide or sulfide is produced by irradiating an inorganic acid salt or organic acid salt of a rare-earth element having a high valence with a light in the range of from UV to visible light in the presence of: a compound which, upon irradiation with the light in the range of from UV to visible light induces a photooxidation-reduction reaction and simultaneously converts the rare-earth ions having a high valence into ions having a low valence; and a cholagen source compound which immediately reacts with the low valence ions to form a cholagen compound.

Abstract: The present invention is characterized by subjecting 4,4?-diallyloxydiphenyl sulfone to a rearrangement reaction under microwave irradiation, preferably in molten state, to produce objective 3,3?-diallyl-4,4?-dihydroxydiphenyl sulfone efficiently in a short time, in high yield and in high purity. Further preferably, by carrying out said reaction in substantially oxygen-free atmosphere in the presence of at least one compound selected from a group consisting of an antioxidant, an organic basic compound and a chelate compound, the above-described object can be attained in more preferable manner.

Abstract: An electrolyte composition containing an ionic liquid and conductive particles as main components, an electrolyte composition containing an ionic liquid, and oxide semiconductor particles or oxide semiconductor particles, and conductive particles, and an electrolyte composition containing an ionic liquid and insulating particles are provided. Furthermore, a photoelectric conversion element comprising: a working electrode, the working electrode comprising an electrode substrate and an oxide semiconductor porous film formed on the electrode substrate and sensitized with a dye; a counter electrode disposed opposing the working electrode; and an electrolyte layer made of these electrolyte compositions is provided.

Abstract: A rare earth ternary complex represented by the following formula (1): wherein M is a rare earth atom; n1 is 2 or 3; n2 is 2, 3, or 4; Rf1 and Rf2 are the same or different and are each a aliphatic group having 1 to 22 carbon atoms and containing no hydrogen atoms, an aromatic group containing no hydrogen atoms, or an aromatic heterocyclic group containing no hydrogen atoms; and Z is a ligand containing X, phosphorus, or nitrogen.

Abstract: The present invention aims at developing a low-cost photoelectric conversion device having favorable conversion efficiency and a solar cell and, accordingly, relates to a photoelectric conversion device of a semiconductor fine particles, being sensitized with an organic dye, which adsorbs thereon a specified azo dye expressed by the general formula 1: wherein Ar 1 represents an aromatic group having at least one substituent selected from the group consisting of a carboxylic acid group, a hydroxyl group, a phosphoric acid group, a phosphoric acid ester group and a mercapto group either directly or via a cross-linking group; and Ar 2 represents an aromatic group having at least one electron-donating group as a substituent, and also to a solar cell using the photoelectric conversion device.

Abstract: According to the present invention, first, a white LED with high color rendering property is realized. In addition, a general object of the present invention is to provide a highly practical light emitting device wherein a rare earth complex is utilized as a wavelength conversion light emitting device of a high efficiency. Such an object is achieved by providing a combined light emitting device wherein a specific complex having a rare earth ion, particularly an Eu (europium) ion, as the central ion, is borne by a transparent solid matrix such as polymer or plastic, and this rare earth complex is excited by an InGaN based blue light emitting diode or by a semiconductor laser utilizing a light emitting layer of InGaN based material. A combination of such a blue light emitting diode, a YAG yellow fluorescent material and such an Eu complex for red light allows for the formation of a white light source with high color rendering property.

Abstract: The present invention aims at developing a low-cost photoelectric conversion device having favorable conversion efficiency and a solar cell and, accordingly, relates to a photoelectric conversion device of a semiconductor fine particles, being sensitized with an organic dye, which absorbs thereon a specified azo dye expressed by the general formula 1

Abstract: A crystalline rare-earth oxide or sulfide which has an average particle diameter of 10 nm or less and in which the rare-earth element has a low valance, in particular, crystalline EuO or EuS of nano size. The rare-earth oxide or sulfide is produced by irradiating an inorganic acid salt or organic acid salt of a rare-earth element having a high valence with a light in the range of from UV to visible light in the presence of: a compound which, upon irradiation with the light in the range of from UV to visible light induces a photooxidation-reduction reaction and simultaneously converts the rare-earth ions having a high valence into ions having a low valence; and a cholagen source compound which immediately reacts with the low valence ions to form a cholagen compound.

Abstract: A method for producing ultra microparticles including steps: dissolving or dispersing at least one of metallic salts into a solvent to form a solution, and irradiating a microwave to the solution to produce the ultra microparticles made of a metal in the metallic salt.