An organic electronic material containing a charge transport compound having at least one of the structural regions represented by formulas (1), (2) and (3) shown below. In the formulas, Ar represents an arylene group or heteroarylene group of 2 to 30 carbon atoms, a represents an integer of 1 to 6, b represents an integer of 2 to 6, c represents an integer of 2 to 6, and X represents a substituted or unsubstituted polymerizable functional group.
—Ar—O—(CH.sub.2).sub.a—O—CH.sub.2—X  (1)
—Ar—(CH.sub.2).sub.b—O—CH.sub.2—X  (2)
—Ar—O—(CH.sub.2).sub.c—X  (3)

A light emitting device having excellent luminance life contains an anode, a cathode, a first organic layer disposed between the anode and the cathode and a second organic layer disposed between the anode and the cathode. The first organic layer contains a compound represented by the formula (C-1), and the second organic layer contains a compound represented by the formula (C-1) and a cross-linked body of a crosslinkable material. ##STR00001##
Ring R.sup.1C and Ring R.sup.2C represent an aromatic hydrocarbon ring or an aromatic hetero ring and R.sup.C represents an oxygen atom, a sulfur atom or a group represented by the formula (C′-1). ##STR00002##
Ring R.sup.3C and Ring R.sup.4C represent an aromatic hydrocarbon ring or an aromatic hetero ring and R.sup.C′ represents a carbon atom, a silicon atom, a germanium atom, a tin atom or a lead atom.

According to the present invention, options for materials for organic devices such as materials for organic EL elements are increased by addition of a cycloalkane, by condensation, to a polycyclic aromatic compound in which a plurality of aromatic rings are linked together by boron atoms, oxygen atoms, and the like. By using a novel cycloalkane-condensed polycyclic aromatic compound as a material for an organic EL element, for example, an organic EL element having excellent emission efficiency and element life is provided.

It is an object of the present invention to provide a high molecular weight compound that has excellent hole-injecting/transporting performance, is capable of blocking electrons, and is highly stable in a thin film state. It is another object of the invention to provide a light emitting diode with high luminous efficacy and a long lifespan, containing an organic layer (thin film) made of the above-described high molecular weight compound. The high molecular weight compound according to the present invention includes a repeating unit constituted by a specific triarylamine structural unit and a specific bonding structural unit, and has a weight average molecular weight in terms of polystyrene of 10,000 or more and less than 1,000,000.

The present disclosure provides a quantum dot (QD) light emitting diode including: a first electrode and a second electrode facing each other; a QD emitting material layer positioned between the first electrode and the second electrode and including a QD; a hole auxiliary layer positioned between the first electrode and the QD emitting material layer; and an electron transporting layer positioned between the QD emitting material layer and the second electrode and including an electron-property material and a hole-property material.

It is an object of the present invention to provide a polymer organic EL element that has a low driving voltage, high light emission efficiency, and a long lifespan. The present invention provides an organic electroluminescence element having a pair of electrodes and at least one organic layer between the electrodes, wherein the organic layer is constituted by two or more high molecular weight compounds including at least high molecular weight compounds α and β, and the high molecular weight compound α has a substituted triarylamine structural unit represented by a general formula (1) below and has a weight average molecular weight of 10,000 or more and less than 1,000,000 in terms of polystyrene. For the symbols in the formula, see the Description.

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The present specification relates to a polymer and an organic light emitting device using the same, wherein the polymer is represented by the following Chemical Formula 1:

E1-[A].sub.a—[B].sub.b—[C].sub.c-E2  [Chemical Formula 1] Wherein A, B, C, E1, E2, a, b and c are described herein.

The invention provides for new polymer compounds and methods for the preparation of modular narrow band gap conjugated compounds and polymers that incorporate exocyclic cross-conjugated donors or substituents, as well as novel monomer components of such polymers and the resulting products which comprise materials and useful electronic devices with novel functionality.

One embodiment relates to an organic electronic material containing a charge transport polymer, wherein the charge transport polymer is a polymer which, when 25 μL portions of methanol are added dropwise and stirred into 1,000 μL of a solution containing the charge transport polymer and toluene in a ratio of 20 mg of the charge transport polymer per 2,290 μL of toluene, the amount of methanol added by the time cloudiness develops in the solution is greater than 350 μL.

A polymer comprising an electron-donating repeat unit of formula (I) and an electron-accepting repeat unit: -(A).sub.n- (I) wherein A in each occurrence is independently a group of formula (II): Y in each occurrence is independently O or S. Z is O, S or NR.sup.3 wherein R.sup.3 is H or a substituent. R.sup.1 in each occurrence is independently H or a substituent. R.sup.2 in each occurrence is independently a substituent, n is at least 2. The polymer may be used as an electron-donating polymer in combination with an electron-accepting material in a bulk heterojunction layer of an organic photodetector.

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