[EN] QUANTUM DOT LIGAND, QUANTUM DOT MATERIAL, AND QUANTUM DOT LIGHT EMITTING DEVICE<br/>[FR] LIGAND À POINTS QUANTIQUES, MATÉRIAU À POINTS QUANTIQUES ET DISPOSITIF ÉMETTEUR DE LUMIÈRE À POINTS QUANTIQUES<br/>[ZH] 量子点配体、量子点材料以及量子点发光器件
Disclosed is an organic electroluminescent element which can be produced by a wet process, has improved laminated structure, and also has improved external quantum efficiency and an improved service life. The organic electroluminescent element comprises at least an anode; a cathode and a laminated structure intercalated between the anode and the cathode, all of which are arranged on a substrate, wherein the laminated structure has at least four layers formed by a wet process, and wherein the layers produced by the wet process include at least a hole injection layer, a hole transport layer and a light-emitting layer. The organic electroluminescent element is characterized in that the hole injection layer comprises an electrically conductive polymer, the hole transport layer comprises a polymeric compound having a repeating unit represented by general formula (1), and the polymeric compound has a weight average molecular weight of 50,000 to 200,000 in terms of polystyrene content.
ORGANIC ELECTROLUMINESCENCE ELEMENT, DISPLAY DEVICE AND ILLUMINATION DEVICE
申请人:Tanaka Tatsuo
公开号:US20120037889A1
公开(公告)日:2012-02-16
Provided is an organic electroluminescence element having an anode, a cathode and an organic compound layer sandwiched between the anode and the cathode, provided that the organic compound layer containing at least a phosphorescence dopant and a polymer which contains a partial structure represented by Formula (1), and a terminal end of the polymer is end-capped, wherein the phosphorescence dopant is a metal complex containing a ligand composed of a 5 or six membered aromatic hydrocarbon ring or a 5 or six membered aromatic heterocyclic group which is bonded to a five membered nitrogen containing aromatic heterocyclic group: Formula (1)
ORGANIC ELECTROLUMINESCENCE ELEMENT AND METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENCE ELEMENT
申请人:Konuma Taro
公开号:US20130087778A1
公开(公告)日:2013-04-11
Disclosed are: an organic electroluminescent element which has high power efficiency, excellent resistance to luminance decrease due to continuous operation and excellent storage stability at high temperatures, while being reduced in chromatically change of color developing light; and a method for manufacturing the organic electroluminescent element. Specifically disclosed is an organic electroluminescent element that has a positive electrode and a negative electrode on a supporting substrate, while comprising an organic layer, which contains at least one light-emitting layer, between the positive electrode and the negative electrode. The organic electroluminescent element is characterized in that at least one layer in the organic layer contains a crown ether compound and a compound having a dibenzofuran skeleton.