摘要:
There is provided an organic light-emitting device having an optical output with a high efficiency and a high luminance, and having good durability. The organic light-emitting device includes an anode, a cathode, and a layer including an organic compound interposed between the anode and the cathode, in which the layer contains a naphthalene compound represented by the general formula (1): wherein Ar1's each represent a substituted or unsubstituted fused ring aromatic hydrocarbon group having four or more rings.
摘要:
There is provided an organic light-emitting device having an optical output with a high a high efficiency and a high luminance, and having good durability. The organic light-emitting device includes an anode, a cathode, and a layer including an organic compound interposed between the anode and the cathode, in which the layer contains a naphthalene compound represented by the general formula (1): wherein Ar1's each represent a substituted or unsubstituted fused ring aromatic hydrocarbon group having four or more rings.
摘要:
A compound represented by the following general formula (1). R3—(X)x-(A)a-(Y)y-(B)b-(Z)z-R12 (1) (A, B, X, Y, and Z represent the following general formulae, and CH on a phenylene ring of each of X, Y, and Z may be replaced with an N atom. a, b, x, y, and z each independently represent an integer of 0 to 5, and a≧1, y≧1, and a+b≧2. (R1 to R14 each independently represent a hydrogen atom, or a linear or branched alkyl group.)). The compound can be suitably used as a compound for an organic EL device.
摘要:
The present invention provides a light-emitting device which can be driven at a low voltage and has high luminance, high efficiency, and has a long lifetime even as an organic EL device using phosphorescence. The light-emitting device of the present invention is a light-emitting device including an anode, a cathode, and an organic light-emitting layer sandwiched between the anode and the cathode, in which the organic light-emitting layer is composed of a host material and one or more kinds of dopants, a difference in electron affinity between the host material and at least one kind of the dopants is 0.3 eV or less, and a difference in ionization potential between the host material and the at least one kind of the dopants is 0.8 eV or less.
摘要:
A compound represented by the following general formula (1). R3—(X)x-(A)a-(Y)y—(B)b—(Z)z—R12 (1) (A, B, X, Y, and Z represent the following general formulae, and CH on a phenylene ring of each of X, Y, and Z may be replaced with an N atom. a, b, x, y, and z each independently represent an integer of 0 to 5, and a≧1, y≧1, and a+b≧2. (R1 to R14 each independently represent a hydrogen atom, or a linear or branched alkyl group.)). The compound can be suitably used as a compound for an organic EL device.
摘要:
The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime. The organic EL device of the present invention includes an organic light-emitting layer composed of at least a host material and a dopant, wherein the dopant is a phosphorescent compound containing a halogen atom, and the host material is a linear aromatic compound having no aromatic substituent at a side thereof.
摘要:
The present invention provides an organic EL device utilizing phosphorescence which can be driven at a low voltage, which realizes high luminance and high efficiency, and which has a long lifetime. The organic EL device of the present invention includes an organic light-emitting layer composed of at least a host material and a dopant, wherein the dopant is a phosphorescent compound containing a halogen atom, and the host material is a linear aromatic compound having no aromatic substituent at a side thereof.
摘要:
The present invention provides a light-emitting device which can be driven at a low voltage and has high luminance, high efficiency, and has a long lifetime even as an organic EL device using phosphorescence. The light-emitting device of the present invention is a light-emitting device including an anode, a cathode, and an organic light-emitting layer sandwiched between the anode and the cathode, in which the organic light-emitting layer is composed of a host material and one or more kinds of dopants, a difference in electron affinity between the host material and at least one kind of the dopants is 0.3 eV or less, and a difference in ionization potential between the host material and the at least one kind of the dopants is 0.8 eV or less.
摘要:
The present invention provides a phosphorescent luminescent device which has high-efficiency and a long lifetime. The organic electroluminescent device according to the present invention includes a pair of electrodes and an organic layer disposed between the pair of electrodes, wherein the organic layer has at least a light-emitting layer, and the light-emitting layer include at least a host material and dopants containing at least a first dopant and a second dopant, and wherein a triplet lowest excitation level of the first dopant is higher than a triplet lowest excitation level of the host material, and a triplet lowest excitation level of the second dopant is lower than a triplet lowest excitation level of the host material.
摘要:
The present invention provides a phosphorescent luminescent device which has high-efficiency and a long lifetime. The organic electroluminescent device according to the present invention includes a pair of electrodes and an organic layer disposed between the pair of electrodes, wherein the organic layer has at least a light-emitting layer, and the light-emitting layer include at least a host material and dopants containing at least a first dopant and a second dopant, and wherein a triplet lowest excitation level of the first dopant is higher than a triplet lowest excitation level of the host material, and a triplet lowest excitation level of the second dopant is lower than a triplet lowest excitation level of the host material.