摘要:
There is provided a material for an anode buffer layer which permits the use of an organic solvent as a solvent of an anode buffer layer-forming solution, and is capable of forming an anode buffer layer that does not dissolve even when coated with a luminescent layer-forming material solution containing an organic solvent as a solvent, and which is capable of producing an organic EL element having high electrical power efficiency and long life. The composition for an anode buffer layer includes an electron-accepting compound and a high-molecular weight compound having a structural unit represented by the following formula (1) or the following formula (2) and having a weight average molecular weight of 20,000 to 1,000,000 as measured by GPC:
wherein in each of the formulae (1) and (2), plural R a s are each a hydrogen atom or an alkyl group, with at least one R a being the alkyl group, plural R b s are each a hydrogen atom or an alkyl group, plural R c s are each a hydrogen atom, an alkyl group or the like, X is a single bond or the like, Y is a structure derived from a vinyl group and the like, and p is 0, 1 or 2.
摘要:
[Object] The present invention provides a charge-transporting polymer compound capable of giving a high light-emitting efficiency and high luminance, and provides, when such a charge-transporting polymer compound is used in an organic layer, organic EL elements having a low driving voltage. [Means for solving] The charge-transporting polymer compound of the present invention is characterized by comprising a constituting unit derived from at least one polymerizable compound of plural polymerizable compounds each having a specific structure.
摘要:
[Problem] To provide an organic light-emitting element material which can be favorably used for obtaining an organic light-emitting element that emits light with high luminance, exhibits high external quantum efficiency and has excellent durability. [Solution to Problem] An organic light-emitting element material which is a high-molecular compound including k% by mol (0 In the formula (1a), R 1 is a hydrogen atom or a methyl group, R 2 and R 3 are each independently a hydrogen atom or a substituent group and may be bonded to each other to form a ring, R 4 is a hydrogen atom, or a substituted or unsubstituted alkyl group, alkenyl group, alkynyl group, aryl group, heterocyclic group, alkylcarbonyl group, arylcarbonyl group, alkylsulfonyl group, arylsulfonyl group, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group or sulfamoyl group, Z is an atomic group that forms an aromatic ring, and X is a divalent linkage group. In the formula (1b), A is a copolymerized monomer unit derived from a vinyl monomer.