摘要:
An electroluminescence device containing a first organic compound having positive-hole-transporting and luminous properties, such as a triphenyl amine compound, a stilbene derivative or a pyrazoline derivative, and a second organic compound having electron-transporting property, such as an oxadiazole derivative, in its luminescence layer interposed between a pair of electrodes.
摘要:
An organic electroluminescent device having an organic hole injection transport layer and an organic luminescent layer formed between two conductive layers constituting electrodes, wherein the organic luminescent layer contains a compound selected from the group consisting of a compound of the following formula (I): ##STR1## wherein each of A and B is an aromatic hydrocarbon group which may have a substituent, C is a nitrogen atom which may have a substituent, a sulfur atom, an oxygen atom, or a selenium atom, and D is a nitrogen atom, or a carbon atom which may have a substituent; a compound of the following formula (II): ##STR2## wherein each of E, F, G and .circle.H is an aromatic hydrocarbon group which may have a substitutent, I is a nitrogen atom which may have a substituent, a sulfur atom, an oxygen atom, or a selenium atom, and J is a hydrogen atom, a cyano group, an amide group, an ester group, an alkyl group, a carboxyl group, an aromatic hydrocarbon group which may be substituted, or an aromatic heterocyclic group which may be substituted; and a compound having at least one group selected from the group consisting of aromatic hydrocarbon cyclic groups and aromatic heterocyclics groups, bonded directly, or via other group, to a naphthyridine skeleton of the following formula: ##STR3##
摘要:
There is disclosed an EL element having at least one layer made from organic materials between an electron injection electrode and a hole injection electrode, the organic materials consisting of oxadiazole series compounds which have a plurality of oxadiazole rings.
摘要:
An electroluminesence device comprising an organic compound having positive-hole-transporting property and a fluorescent organic compound having electron-transporting property in its luminescence layer interposed between a pair of electrodes. When the electroluminescence device comprises a cyclopentadiene derivative having formula (I) as the fluorescent organic compound, the device can emit blue light which has not been attained so far: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently represent hydrogen, an alkyl group having 1 to 10 carbon atoms, which may have a substituent, an alicyclic group having 5 to 6 carbon atoms, an alkoxyl group having 1 to 6 carbon atoms, which may have a substituent, a halogen, an acyl group, a hydroxyl group, an aryloxy group, an aryl group which may have a substituent, an allyl group, or an aldehyde group.
摘要:
Disclosed herein an electroluminescent device for converting an energy of an electric field applied directly to a light energy and capable of producing surface luminescent for a large area different from conventional incandescent lamps, fluorescent lamps or light emitting diodes.
摘要:
An organic material represented by the following General Formula (1): where in the General Formula (1), R1 and R2, which may be identical to or different from each other, each represent an alkyl group having 4 to 24 carbon atoms, X represents a substituted or unsubstituted aromatic hydrocarbon group, Y represents an aromatic hydrocarbon group, an alkoxyl group, or an alkyl group, which may be substituted with a substituent, and n represents an integer of 1 to 3.
摘要:
Fluorescence-emitting material which improves luminous efficiency of an organic light-emitting element such as an organic EL element or an organic PL element and an organic light-emitting element using the fluorescence-emitting material. The fluorescence-emitting material includes a compound having an indolocarbazole skeleton represented by the following general formula (1), as defined in the specification. The organic light-emitting element includes an organic EL element including: a substrate; an anode; a cathode; and a light-emitting layer, the anode and the cathode being laminated on the substrate and the light-emitting layer being sandwiched between the anode and the cathode, in which the light-emitting layer includes: the organic light-emitting material; and as a host material, an organic compound having excited triplet energy higher than that of the organic light-emitting material.
摘要:
The compounds represented by the following general formula have excellent properties as a charge transport material. In the formula, R1 to R3 represent a substituent, n1 and n2 indicate an integer of from 0 to 5, n3 indicates an integer of from 0 to 4, X represents a linking group of —O—, —S—, —SO2—, —CS—, —R4—, —C(R5)(R6)—, —PO(R7)—, —Si(R8)(R9)—, >PO—, >Si(R10)— or >Si
摘要:
An organic EL element comprises: a substrate; a first electrode formed at one surface side of the substrate; a second electrode opposing the first electrode; and an organic EL layer located between the first and second electrodes. In the organic EL element, the second electrode is a transparent electrode, and the first electrode is a reflecting electrode. The organic EL element is a top-emission type. The first electrode comprises a plurality of nanometer-size (nanometer-order) columnar structures formed on the above-mentioned one surface of the substrate, and each of the plurality of columnar structures has a metallic surface as the outermost surface.
摘要:
An organic semiconductor device which has an organic semiconductor layer formed by crystallizing a compound represented by the following formula (1) from a solution of the compound: wherein X1, X2 and X3 represent O, S, Se or Te; at least one of R1, R2, R3 and R4 represents a group that has both an aromatic ring to form a π-conjugated system with the skeleton to which it bonds, and a chainlike structure in which the number of the carbon atoms constituting the main chain is from 4 to 20, and the remaining ones represent a hydrogen atom or a substituent.
摘要翻译:一种有机半导体器件,其具有通过以下化合物的溶液使由下式(1)表示的化合物结晶而形成的有机半导体层:其中X1,X2和X3表示O,S,Se或Te; R 1,R 2,R 3和R 4中的至少一个表示具有芳香环以形成具有其键合的骨架的共轭体系的基团,以及构成其中的碳原子数的链状结构 主链为4〜20,其余为氢原子或取代基。