Abstract: A method for producing a transparent electroconductive material, the method comprising a step of contacting poly(N-alkylcarbazole) with a metal, said poly(N-alkylcarbazole) is obtained by polymerizing at least one kind of N-alkylcarbazole represented by the following general formula, wherein n represents an integer of 1 or more, and at least one hydrogen in the alkyl may be replaced by at least one group selected from hydroxyl, carboxyl, sulfo and amino.

Abstract: This invention relates to a borane derivative represented by the formula (1) and an organic electroluminescent device: wherein R1 to R8 and Z2 are each independently a hydrogen atom, a saturated or unsaturated hydrocarbon group, an aromatic group, a heterocyclic group, a substituted amino group, a substituted boryl group, an alkoxy group or an aryloxy group; X, Y and Z1 are each independently a saturated or unsaturated hydrocarbon group, an aromatic group, a heterocyclic group, a substituted amino group, an alkoxy group or an aryloxy group; substituents of Z1 and Z2 may be united to form a condensed ring; and n is an integer of 1-3; with the provisos that when n is two or more, Z1s may be different from each other; and that cases where n is 1, X, Y and R2 are each methyl, and R8 is hydrogen or substituted boryl and those where n is 3 and Z1 is methyl are excluded.

Abstract: An organic EL device having an organic EL structure which moisture does not enter and maintaining stable luminescence characteristics for a long period of time. An anode (2), and organic substance layer (3), and a cathode (4) are formed on a transparent substrate (1). A combination (insulating layer-moisture reaction layer combination) including an insulating layer (5) and a moisture reaction layer (6) formed on the insulating layer (5) covers an organic EL structure including the organic substance layer, the cathode, and a portion of the anode. The material of the moisture reaction layer (6) is a metal having a Pauling's electronegativity of less than 1.2. There are large differences in the number of dark spots produced and the growth of the dark spots between a metal; e.g., Ca (1.0), whose electronegativity is less than 1.2 and a metal; e.g., Mg (1.2), whose electronegativity is 1.2.

Abstract: This invention relates to a borane derivative represented by the formula (1) and an organic electroluminescent element: 1

Abstract: An organic electroluminescent device contains a specific amine derivative represented by formula (1) as a hole-transportation material or light-emitting material, to thereby produce an organic EL device of high efficacy and prolonged service life.

Abstract: A specific silole derivative represented by Formula (1) is incorporated into an organic electroluminescent element. Thus, the element can have a high efficiency and a long life. In Formula (1), R1 and R2 each independently represent a substituted or unsubstituted alkyl, silyl, aryl, heterocyclic or alkenyl group and may be bonded with each other at the respective terminals; Ar1 and Ar2 each independently represent a substituted or unsubstituted aryl or heterocyclic group; and R3 to R10 each independently represent a substituted or unsubstituted alkyl, aryl or heterocyclic group and may be bonded with each other at the respective terminals.

Abstract: A diaminonaphthalene derivative of formula (1): wherein R21 to R30 independently and individually represent a hydrogen atom, a halogen atom, a C1-C6 alkyl group, a C1-C6 alkoxy group, a substituted or unsubstituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, the substituted or unsubstituted aryl group or the substituted or unsubstituted heterocyclic group may be condensed with the corresponding benzene ring at an arbitrary position of the benzene ring; and each of X and Y represents a hydrogen atom or a substituted or unsubstituted amino group, wherein at least one of the X or Y represents a substituted or unsubstituted amino group. The derivative is incorporated into an organic electroluminescent device (organic EL device), and serves as a hole-transportation layer, a luminescence layer, etc. The organic EL device containing the derivative exhibits high luminous efficacy and a prolonged service life.

Abstract: A red emitting material consisting of porphyrin, wherein the fluorescence of porphyrin is utilized. Metalloporphyrin can also be used as the porphyrin. An organic electroluminescent element having a porphyrin containing light emitting. The porphyrin content in the light emitting layer may be 1.0% by weight or more. The light emitting layer functions as a hole injection and transport layer or an electron injection and transport layer. Alternatively, it may be possible to further provide a hole injection and transport layer or an electron injection and transport layer.

Abstract: An electroluminescence element (EL) obtained by using a silacyclopentadiene derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).

Abstract: An electroluminescence element (EL) obtained by using a silacyclopentadiene. derivation expressed by the general formula (I) and the derivative are provided. ##STR1## (wherein X and Y are independently hydrocarbon radicals with from 1 to 6 atoms and R.sub.1 to R.sub.4 are hydrogen, halogens, alkyl radicals with from 1 to 6 carbon atoms, or a condensed (un)substituted ring if being adjacent).

Abstract: A novel copolymer affording a highly efficient electroluminescent element by the use of which the movement of electric charge occurs very efficiently and a full color luminescence is possible, a process for producing the same and an electroluminescent element, are provided, which copolymer is prepared by copolymerizing N-vinylcarbazole as an electron-transporting compound with a specified cumarin derivative as a luminescent compound; which process comprises copolymerizing a specified quantity of a specified cumarin derivative with a specified quantity of N-vinylcarbazole in the presence of a polymerization initiator or a catalyst; and which electroluminescent element is prepared by using a thin film obtained from the copolymer.