Abstract:
An organic electroluminescence device includes an anode, an emitting layer, and a cathode in this order. The emitting layer contains a compound, including a structure including a first partial structure of formula (3-100) and a second partial structure of formula (3-1A), mutually bonded in one molecule:
In formula (3-100), D1 to D3 are each a deuterium atom, or one of D1 to D8 is a single bond to another atom/structure in the molecule, and remaining D1 to D8 are each a deuterium atom, and R310 is a single bond bonded to the second partial structure. In formula (3-1A), one of R301 to R306 is a single bond bonded to the first partial structure, and remaining R301 to R306 not being bonded to the first partial structure are independently H, a substituent, or a single bond bonded to another atom/structure in the molecule.
Abstract:
A compound of formula (I), a material for an organic electroluminescence device comprising at least one compound of formula (I); an organic electroluminescence device which comprises an organic thin film layer between a cathode and an anode, wherein the organic thin film layer comprises one or more layers and comprises a light emitting layer, and at least one layer of the organic thin film layer comprises at least one compound of formula (I); an electronic equipment comprising the organic electroluminescence device; and a process for preparing the compound of formula (I).
Abstract:
A material for organic electroluminescence device including a specific compound having a specific group in the central skeleton and an organic electroluminescence device including an organic thin film layer between an anode and a cathode. The organic thin film layer includes a light emitting layer and at least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic electroluminescence device has a long lifetime and the material for organic electroluminescence device realizes such a device.
Abstract:
An organic electroluminescence device includes an anode, an emitting layer, and a cathode in this order. The emitting layer comprises a delayed fluorescent compound M2 and a compound M3 having at least one deuterium atom, and the compound M3 is not a compound having a partial structure represented by a formula (1C) or (2C). S1(M2) of the compound M2 and S1(M3) of the compound M3 satisfy a relationship of S1(M3)>S1(M2). In the formulae (1C) and (2C), Y41 to Y48 are each independently a N atom, CR, or a C atom bonded to another atom or the like in the compound M3, where each R is independently a H atom or a substituent, at least one of Y41 to Y48 is a N atom, and at least one of Y41 to Y48 is a C atom bonded to another atom or the like in the compound M3.
Abstract:
A compound is represented by one of formulae (11) to (13). R1 to R4 each independently represent a group represented by a formula (1-1), a group represented by a formula (2-1), a group represented by a formula (2-2) or the like. At least one of R1 to R4 is the group represented by the formula (1-1) or the like. At least one of R1 to R4 is the group represented by the formula (2-1), (2-2) or the like. For instance, in the formula (1-1), R11 represents a substituent, and R101 to R110 each independently represent a hydrogen atom or a substituent. For instance, in the formulae (2-1) to (2-2), R161 to R168 and R171 to R180 each independently represent a hydrogen atom or a substituent. * each independently represents a bonding position to a carbon atom in a benzene ring in each of the formulae (11) to (13),
Abstract:
A material for organic electroluminescence device including a specific compound having a specific group in the central skeleton and an organic electroluminescence device including an organic thin film layer between an anode and a cathode. The organic thin film layer includes a light emitting layer and at least one layer of the organic thin film layer includes the material for organic electroluminescence device. The organic electroluminescence device has a long lifetime and the material for organic electroluminescence device realizes such a device.
Abstract:
Specifically substituted aza-dibenzofurans and aza-dibenzothiophenes of formula (I) and their use in electronic devices, especially electroluminescent devices. When used as charge transport material, charge blocker material and/or host material in electroluminescent devices, the specifically substituted aza-dibenzofurans and aza-dibenzothiophenes may provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices and reduced driving voltage of electroluminescent devices. In formula (I) Y is S or O; one of X1-X8 is N; another X1-X8 is C-L(R9)—[X9X10X11]Ring; and the remaining X1-X8 are CR1-CR8 wherein R1-R8 are independently H, alkyl, alkenyl, aryl, etc.
Abstract:
A compound is represented by a formula (1). In the formula (1); Ar represents an aromatic hydrocarbon group or a heterocyclic group having 4 or more fused rings and 22 or less ring atoms; Ar optionally has a substituent; R11 is a substituted or unsubstituted aromatic hydrocarbon group; when R11 is an aromatic hydrocarbon group having a substituent, the substituent is not a heterocyclic group; X1 represents a nitrogen atom or a carbon atom bonded with R12 (CR12); R12 represents a hydrogen atom or a substituent; L1 represents a single bond or a linking group; X2 and X3 each independently represent a nitrogen atom or a carbon atom bonded with R2 (CR2); R1 and R2 each independently represent a hydrogen atom or a substituent; and L2 is a linking group.
Abstract:
An organic EL device includes an anode, a cathode, and an emitting layer interposed between the anode and the cathode, in which the emitting layer includes a delayed fluorescent compound M2 and a compound M3 represented by a formula (100), and a singlet energy S1(M2) of the compound M2 and a singlet energy S1(M3) of the compound M3 satisfy a numerical formula (Numerical Formula 1). In the formula (100), X1 is an oxygen atom or a sulfur atom, C1 is a carbon atom, R11 to R18, R2, R31, R32, R34, R35, R4 and R45 to R48 are each independently a hydrogen atom, substituent or the like, n is 1, 2, or 3. When L1 is a single bond, n is 1, k is 1, 2, or 3, m is 2, 3, or 4, k+m=5, and L1 is a single bond or linking group.
Abstract:
An organic electroluminescence device, comprising: an anode, an emitting layer, a first electron-transporting layer, a second electron-transporting layer and a cathode in this order, wherein the second electron-transporting layer comprises a compound represented by the following formula (1), and the emitting layer comprises a compound represented by the following formula (10).