Patent TW-201923032-A (TW)
Title: Compound having indenocarbazole ring structure and organic electroluminescence element
Inventor: MOCHIZUKI SHUNJI
IPC: C07D413/04
Filed: 2018-11-06
Abstract: An object of the present invention is to provide an organic compound served as a material for an organic EL device with high efficiency and high durability, which is excellent in hole injection/transport performance and has electron blocking capability, high stability in a thin film state, and to further provide an organic EL device having high efficiency and high durability by using the compound. The organic EL device of the present invention is characterized in that: at least a first hole transporting layer, a second hole transporting layer, a green light emitting layer and an electron transporting layer are disposed in this order between the anode and the cathode from the anode side, wherein a compound having an indenocarbazole ring structure represented by the following general formula (1) is contained in the second hole transporting layer, or in at least one layer of laminated films disposed between the first hole transporting layer and the electron transporting layer. (In the formula, A represents a substituted or unsubstituted aromatic hydrocarbon, a substituted or unsubstituted aromatic heterocyclic ring or a substituted or unsubstituted condensed polycyclic aromatic divalent group. Ar1, Ar2 and Ar3 may be the same or different from each other, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted condensed polycyclic aromatic group. Here, A and Ar2, or Ar2 and Ar3 may form a ring by a single bond, or may be bonded to each other via a substituted or unsubstituted methylene group, oxygen atom, or sulfur atom to form a ring. R1 to R9 may be the same as or different from each other and are each a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, a linear or branched alkyl group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyl group having 5 to 10 carbon atoms which may have a substituent, a linear or branched alkenyl group having 2 to 6 carbon atoms which may have a substituent, a linear or branched alkoxy group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyloxy group having 5 to 10 carbon atoms which may have a substituent, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted condesed polycyclic aromatic group, or a substituted or unsubstituted aryloxy group, which may form a ring by a single bond, or may be bonded to each other via a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom to form a ring. R10 and R11 may be the same or different from each other and each represents a linear or branched alkyl group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyl group having 5 to 10 carbon atoms which may have a substituent, a linear or branched alkenyl group having 2 to 6 carbon atoms which may have a substituent, a linear or branched alkoxy group having 1 to 6 carbon atoms which may have a substituent, a cycloalkyloxy group having 5 to 10 carbon atoms which may have a substituent, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted condensed polycyclic aromatic group or a substituted or unsubstituted aryloxy group, which may form a ring by a single bond and may be bonded to each other via a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom to form a ring.).