Abstract: Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer.

Abstract: Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer.

Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Abstract: Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer.

Abstract: The present invention provides with an electron-accepting compound having a structure of the following formula (1):

Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound an satisfying a specific condition.

Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound ?n satisfying a specific condition.

Abstract: The present invention is to provide an iridium complex compound, which is soluble in an organic solvent, which can be stored for long periods without reprecipitation thereof and which secures a low driving voltage and a high luminescent efficiency of an organic electroluminescent element produced using the compound, to provide an organic electroluminescent element containing the compound and to provide a display and a lighting using the organic electroluminescent element. The present invention relates to the iridium complex compound having a specific chemical structure. Further, the invention also relates to the organic electroluminescent element produced using the compound, which requires a low operating voltage and has a long operating lifetime.

Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.

Abstract: The objection of invention is to provide an organic electroluminescent element having an excellent current-voltage property. The organic electroluminescent element of the invention comprises an anode, a light emitting layer and a cathode, in this order, wherein a total number of kinds of an electron transport material and a light emitting material contained in the light emitting layer is five or more. Preferably, a total number of kinds of an electron transport material contained in the light emitting layer is four or more, and at least one of an ionization potential and an electron affinity of three kinds or more of the electron transport materials contained in the light emitting layer is different from each other.

Abstract: An organic electroluminescent element comprising: an anode; a cathode; a luminescent layer provided between the anode and the cathode; and a hole injecting and transporting layer provided between the anode and the cathode and adjacent to the luminescent layer, wherein at least the luminescent layer is formed by a wet film forming method, and contains a charge transporting material and a luminescent material, in which the charge transporting material contains a hole transporting material and an electron transporting material each having a specific partial structure, and the luminescent material contains at least three kinds of materials and has an emission spectrum having at least two kinds of emission maximums.

Abstract: A polymer comprising a repeating unit represented by the following formula (1) and a cross-linkable group wherein Ar11 to Ar17, R11, R12 and r are as defined; and an organic electroluminescent element containing at least one organic layer containing a network polymer formed by cross-linking the polymer, the layer being a hole injection layer or a hole transporting layer.

Abstract: The present invention relates to a polymer comprising a repeating unit containing a specific partial structure and a repeating unit containing a crosslinking group, a composition for an organic electroluminescent element comprising the polymer, and an organic electroluminescent element comprising an organic layer formed using the composition for an organic electroluminescent element by a wet film formation method.

Abstract: The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group ? for organic electroluminescent element that is constituted of at least two kinds of compounds which each have a molecular weight of 3,000 or less and have a structure comprising a plurality of aromatic ring groups linked to each other, wherein the compound group ? comprises: a compound ?1; and another compound ?n satisfying a specific condition.

Abstract: An object of the present invention is to provide a conjugated polymer which has a high hole transportability and is excellent in solubility and depositability. Another object of the present invention is to provide an organic electroluminescence element which is capable of low voltage driving and has a high luminous efficiency and drive stability. The conjugated polymer of the present invention is a conjugated polymer containing a specific structure as the repeating unit, where the conjugated polymer contains an insolubilizing group as a substituent, the weight average molecular weight (Mw) is 20,000 or more and the dispersity (Mw/Mn) is 2.40 or less.

Abstract: An organic electroluminescent element comprising: an anode; a cathode; a luminescent layer provided between the anode and the cathode; and a hole injecting and transporting layer provided between the anode and the cathode and adjacent to the luminescent layer, wherein at least the luminescent layer is formed by a wet film forming method, and contains a charge transporting material and a luminescent material, in which the charge transporting material contains a hole transporting material and an electron transporting material each having a specific partial structure, and the luminescent material contains at least three kinds of materials and has an emission spectrum having at least two kinds of emission maximums.

Abstract: The invention provides an organic compound incorporating a specific structure into a pyridine skeleton or a 1,3,5-triazine skeleton and adapting the molecular weight to a specific range, a composition comprising the organic compound and a solvent, organic electroluminescent element comprising a layer that is formed by using the composition, and the uses thereof.

Abstract: The present invention relates to a polymer comprising a repeating unit containing a specific partial structure and a repeating unit containing a crosslinking group, a composition for an organic electroluminescent element comprising the polymer, and an organic electroluminescent element comprising an organic layer formed using the composition for an organic electroluminescent element by a wet film formation method.