摘要:
The invention relates to a composition for organic electroluminescent element, which comprises: a solvent; and a compound group α 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 α comprises: a compound α1; and another compound αn satisfying a specific condition.
摘要:
The present invention relates to an organic electroluminescent element which comprises two or more hole injection/transport layers each formed by a wet film formation method using a composition containing, as a hole-injecting/transporting compound, an arylamine polymer compound that has a repeating unit having a triarylamine structure therein, in which when the number of atoms present on the path which is the smallest in the number of atoms present thereon, of the paths which each connect the nonaromatic tertiary nitrogen atoms contained in any two triarylamine structures present in each polymer compound, is taken as N: the minimum number of atoms between nitrogen atoms in the compound, then the N in each hole injection/transport layer is in a specific state.
摘要:
The present invention relates to an organic electroluminescent element which comprises two or more hole injection/transport layers each formed by a wet film formation method using a composition containing, as a hole-injecting/transporting compound, an arylamine polymer compound that has a repeating unit having a triarylamine structure therein, in which when the number of atoms present on the path which is the smallest in the number of atoms present thereon, of the paths which each connect the nonaromatic tertiary nitrogen atoms contained in any two triarylamine structures present in each polymer compound, is taken as N: the minimum number of atoms between nitrogen atoms in the compound, then the N in each hole injection/transport layer is in a specific state.
摘要:
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.
摘要:
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.