Sumitomo Chemical Company, Limited

Rui Ishikawa

Hideyuki Higashimura

Masanobu Tanaka

Ken Sakakibara

Kenta Tanaka

Nobuhiko Akino

Kazuei Ohuchi

William Tarran

Takayuki Iijima

Takakazu Saito

Yusuke Ishii

Kensaku Horie

Arihiro Yashiro

Tomohisa Temma

Norifumi Kobayashi

Timothy Kiran Kamtekar

Provided is a metal complex which is excellent in quantum yield and full width at half maximum of a light emission spectrum. The metal complex is represented by the following formula (1): wherein M represents an iridium atom or the like, nrepresents 1 to 3, nrepresents 0 to 2, Xto Xrepresent a carbon atom or the like, Rto Rrepresent a hydrogen atom or the like, one of Xand Xis a single bond, and the other is a group represented by &#x2014;CRR&#x2014;CRR&#x2014;, Rto Rrepresent an alkyl group or the like, ring A represents a heteroaromatic ring, and A-G-Arepresents an anionic bidentate ligand.

Metal complex and light emitting device using the same

The present invention is to provide a composition that can provide an electroluminescent device emitting light with high brightness. The present invention provides following: a composition including a polymer compound comprising one or more structural unit(s) selected from the group consisting of a structural unit represented by Formula (1), a structural unit represented by Formula (3), a structural unit represented by Formula (5), a structural unit represented by Formula (16), a structural unit represented by Formula (18), a structural unit represented by Formula (20), and a structural unit represented by Formula (22) and an ionic compound represented by Formula (23); an organic film and an electric device comprising the composition. 

Electroluminescent composition and electric device with high brightness

The present invention provides a compound that has high solubility in a highly polar solvent and is usefully usable for an application method using a highly polar solvent, the compound that can manufacture an electroluminescent device having high light-emitting efficiency. Specifically, the present invention provides a compound containing a structure represented by Formula (1): wherein:

Aryl compounds for application in a highly polar solvent

Provided is a layered structure having a first electrode, a second electrode, a light emitting layer or a charge separation layer located between the first electrode and the second electrode, and a layer located between the light emitting layer or the charge separation layer and the first electrode and containing a polymer having a repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups. Also provided is a polymer having, as the repeating unit containing one or more ionic groups selected from two specific groups and one or more specific polar groups, one or more repeating units selected from four specific repeating units containing an aromatic group. The layered structure of the present invention provides an electroluminescent device capable of emitting light at a high luminance and a photoelectric conversion device having a high photoelectric conversion efficiency.

Layered structure, polymer, electroluminescent device, and photoelectric conversion device

A laminated structure comprising an electrode, a polymer binding layer arranged on the electrode, and an electrically conductive organic material layer arranged on the polymer binding layer, wherein the polymer binding layer comprises an aromatic polymeric compound which has a structure represented by formula (I) [wherein Ar represents a conjugated divalent group which may have a substituent, provided that when there are multiple Ar's, the Ar's may be the same as or different from each other; and n represents an integer of 1 or greater] and has a number average molecular weight of 1&#xd7;10to 1&#xd7;10inclusive in terms of polystyrene content, the polymer binding layer is bonded to the electrode via a chemical bond between the aromatic polymeric compound and the surface of the electrode, and an electrically conductive organic material that composes a layer included in the electrically conductive organic material layer and arranged adjacent to the polymer binding layer has a number average molecular weight of 3&#xd7;10to 1&#xd7;10inclusive in terms of polystyrene content. 

Laminated structure, method for producing same, and electronic element comprising same

An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (14) as a charge injection layer and/or a charge transport layer: wherein Arand Arrepresent certain fused polycyclic aromatic groups; R, R, Rand Rrepresent certain organic groups; m1, m2 and m6 represent an integer of 1 or more; m7 represents an integer of 0 or more; and when R, R, Rand Rare each plurally present, they each may be the same or different.

Electronic device and polymer compound

An electronic device that serves as a high-brightness electroluminescent device includes a layer containing a polymer compound having one or more structural units selected from a structural unit represented by formula (1) and a structural unit represented by formula (7) as a charge injection layer and/or a charge transport layer: Wherein R, R, Rand Rrepresent certain groups; m1 and m5 represent an integer of 0 or more; when Rand Rare plurally present, they may be the same or different; and a hydrogen atom in formula (1) or (7) may be replaced with a substituent other than the certain groups.

Electronic device, polymer compound, organic compound, and method of producing polymer compound

The present invention provides: a layered structure having a substrate and a hole injection and/or hole transport layer comprising an aromatic compound having, on a side chain, at least one type of group having a cationic center;

Growing community of inventors

Chikusei, Japan

Rui Ishikawa