Abstract: A method of producing an organic electroluminescent device includes forming an organic compound layer with an organic compound layer coating liquid that contains an organic compound and an aliphatic ketone solvent. The aliphatic ketone solvent contains about 0.01% by weight or less of an impurity contained ketone structure component.

Abstract: An organic electroluminescence device of the invention includes: an anode; a cathode; and an organic compound layer; the organic compound layer including at least one layer including a charge-transporting polyester; the charge-transporting polyester including repeating units each containing a structure represented by the following formula (I-1) or (I-2); the thickness being about 20 to 100 nm of the nearest layer to the anode of the at least one layer including the charge-transporting polyester; the cathode including a first layer and a second layer; the first layer being in contact with the organic compound layer and including an alkaline metal oxide, alkaline earth metal oxide, alkaline metal halide or alkaline earth metal halide; the second layer being in contact with the first layer and including an alkaline metal or alkaline earth metal.

Abstract: An organic electroluminescent device includes one or more organic compound layers sandwiched between a pair of electrodes, at least one of the electrodes being transparent or semi-transparent, wherein there is provided a layer containing a charge transport polyester comprising a repeating unit containing at least one type selected from structures represented by the following formulae (I-1) and (I-2), as a substructure, so as to be in contact with at least one electrode of the pair of electrodes; and a difference between the ionization potential of the charge transport polyester contained in the layer in contact with the one electrode, and the work function of the surface of the one electrode is within a range of from 0 eV to 0.7 eV.

Abstract: Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 to R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n? is an integer of 1 to 5.

Abstract: The invention provides an organic electroluminescence device having a pair of electrodes at least one of which is transparent or translucent and plural organic compound layers positioned between the pair of electrodes, at least one of the plural organic compound layers being a hole transport layer in which an electron transport material is mixed with at least one hole transport polymer, and at least one of the plural organic compound layers containing a luminescent material.

Abstract: Disclosed is an organic electroluminescent element comprising at least one pair of electrodes comprising an anode and a cathode, at least one of which having light permeability, and one or a plurality of organic compound layers held between the electrodes, wherein at least one organic compound layer contains at least one kind of charge-transferable polyether comprising a repetition unit containing at least one partial structure selected from the group consisting of the following general formulae (I-1) and (I-2)

Abstract: The invention provides a diamine compound polymer having a 1,3-phenylene group selected from structural formulae represented by formulae (I-1) and (I-2): where, in the formulae (I-1) and (I-2), A represents a structure represented by the following formula (II); R represents a hydrogen atom, an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group; Y represents a divalent alcoholic residue; Z represents a divalent carboxylic acid residue; B and B? independently represent —O—(Y—O)n—R or —O—(Y—O)n—CO—Z—CO—O—R? (where R, Y and Z have the same meanings as described above, and R? represents an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group); n represents an integer of 1 to 5; and p represents an integer of 5 to 5000; where, in the formula (II), Ar represents a substituted or non-substituted aromatic group; X represents a substituted or non-substituted divalent 1,3-phenylene group; T represents

Abstract: The present invention provides a thiophene-containing compound represented by Formula (I) and a thiophene-containing compound polymer using the thiophene-containing compound. In Formula (I), Ar1 represents a substituted or unsubstituted monovalent aromatic group; X represents a divalent straight-chain hydrocarbon group having 1 to 6 carbon atoms, a divalent branched-chain hydrocarbon group having 2 to 10 carbon atoms, or a substituted or unsubstituted divalent aromatic group; R1 to R5 each independently represent a hydrogen atom, an alkyl group, a cyano group, a halogen group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; 1 represents an integer from 1 to 5; and m and k each independently represent 0 or 1.

Abstract: The present invention relates to a thiophene-containing compound and a thiophene-containing compound polymer which are useful for organo-electronic devices such as electrophotographic photoreceptors (photosensitive elements), organic electroluminescent elements and organic transistors. More specifically, the invention relates to a thiophene-containing compound and a thiophene-containing compound polymer which are excellent in terms of both charge-transporting properties and luminous properties.

Abstract: A method for producing a polymer organic electronic material comprising: synthesizing a polymer organic electronic material by condensing a precursor monomer for the polymer organic electronic material in the presence of a metal catalyst, preparing a polymer organic electronic material solution by dissolving the polymer organic electronic material in an organic solvent, and removing metal ions, which originate from the metal catalyst, from the polymer organic electronic material solution by using an ion exchange resin; a polymer organic electronic material which can be obtained by the method; and an organic electroluminescent device which uses the polymer organic electronic material.

Abstract: The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2). A represents a structure represented by the following formula (II-1). Y and Z represent divalent hydrocarbon groups. B and B? each independently represents a group represented by —O—(Y—O)m-H or —O—(Y—O)m-CO-Z-CO—OR?, wherein R? is a hydrogen atom, an aralkyl group, an aryl group, or an aralkyl group. m represents an integer from 1 to 5; and p represents an integer from 5 to 5000. Ar represents a monovalent aromatic group. X represents a divalent condensed aromatic group. T represents a divalent linear hydrocarbon group having 1 to 6 carbon atoms or a divalent branched hydrocarbon group having 2 to 10 carbon atoms. k and n each represents an integer of 0 or 1.

Abstract: The invention provides an organic electroluminescence device including an organic compound layer, wherein the organic compound layer is constituted of two or more layers at least including a light emitting layer and a buffer layer, at least one layer of the organic compound layers contains a charge-transporting polyester, which includes a repeating unit containing, as a partial structure, at least one selected from structures represented by following general formulas (I-1) and (I-2); and the buffer layer is provided adjacent to the anode and contains at least a charge injecting material: [chem 1] wherein, in the general formulas (I-1) and (I-2), Ar represents a substituted or non-substituted monovalent aromatic group; X represents a substituted or non-substituted divalent aromatic group; k, m and l each represents 0 or 1; and T represents a linear divalent hydrocarbon with 1 to 6 carbon atoms or a branched hydrocarbon with 2 to 10 carbon atoms.

Abstract: A charge-transporting polymer is represented by the following general formula (I-1) or (I-2): wherein A represents a group represented by the following general formula (II-1):

Abstract: An organic electro-luminescent device comprising one or more organic compound layers sandwiched between a pair of electrodes, at least one of which electrodes is transparent or semi-transparent, wherein at least one of the one or more organic compound layers comprises at least one polyurethane compound having a repeating unit represented by the following general formula (I). At least one of A and B in general formula (I) represents a divalent group represented by one of the following general formulae (II) to (VI).

Abstract: The present invention relates to a thiophene-containing compound and a thiophene-containing compound polymer which are useful for organo-electronic devices such as electrophotographic photoreceptors (photosensitive elements), organic electroluminescent elements and organic transistors. More specifically, the invention relates to a thiophene-containing compound and a thiophene-containing compound polymer which are excellent in terms of both charge-transporting properties and luminous properties.

Abstract: The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2). A represents a structure represented by the following formula (II-1). Y and Z represent divalent hydrocarbon groups. B and B? each independently represents a group represented by —O—(Y—O)m—H or —O—(Y—O)m—CO-Z-CO—OR?, wherein R? is a hydrogen atom, an aralkyl group, an aryl group, or an aralkyl group. m represents an integer from 1 to 5; and p represents an integer from 5 to 5000. Ar represents a monovalent aromatic group. X represents a divalent condensed aromatic group. T represents a divalent linear hydrocarbon group having 1 to 6 carbon atoms or a divalent branched hydrocarbon group having 2 to 10 carbon atoms. k and n each represents an integer of 0 or 1.

Abstract: The present invention provides an organic electroluminescent device including a pair of electrodes including an anode and a cathode, at least one of which is transparent or translucent; and one or more organic compound layers placed between the pair of electrodes, wherein at least one of the organic compound layers contains a charge transport material that satisfies the following relations: (ta?tT)/ta<0.5 ??Expression (1) D/?<20 ??Expression (2) wherein, in an electric field of 10 V/?m, tT is a transit time of a transient photocurrent waveform; IT is a current value at time tT; Ia is half of the current value IT; ta is a time at the current value Ia on the transient photocurrent waveform; D and ? are respectively a diffusion coefficient and a true mobility obtained from the transient photocurrent waveform; and D/? is the ratio of D to ?.

Abstract: An organic electroluminescent element having at least one pair of electrodes including an anode and a cathode, at least one of which having light transmissive, and at least one organic compound layer disposed between the electrodes, wherein the at least one organic compound layer contains at least one kind of non-conjugated polymer having terminal groups, and at least one of terminal groups of the non-conjugated polymer contains a fluorescent substance emitting fluorescence in a solid state.

Abstract: An organic electro-luminescent device comprising one or more organic compound layers sandwiched between a pair of electrodes, at least one of which electrodes is transparent or semi-transparent, wherein at least one of the one or more organic compound layers comprises at least one polyurethane compound having a repeating unit represented by the following general formula (I). At least one of A and B in general formula (I) represents a divalent group represented by one of the following general formulae (II) to (VI).

Abstract: Disclosed is an organic electroluminescent element comprising at least one pair of electrodes comprising an anode and a cathode, at least one of which having light permeability, and one or a plurality of organic compound layers held between the electrodes, wherein at least one organic compound layer contains at least one kind of charge-transferable polyether comprising a repetition unit containing at least one partial structure selected from the group consisting of the following general formulae (I-1) and (I-2).