Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

Takamune Hattori

Yasushi Okubo

Norio Miura

Kaori Ono

Hiroshi Kita

Hideo Taka

Takeshi Hakii

Shinya Otsu

Osamu Ishige

Hiroaki Itoh

Dai Ikemizu

Noriko Yasukawa

Motoaki Sugino

Takayuki Iijima

Ryutaro Sugawara

An organic electroluminescence element including an anode, a plurality of organic functional layers including a light-emitting layer, and a cathode in that order wherein the organic functional layer containing a compound having a structure represented by the following general formula (1) is arranged between the light-emitting layer and the cathode, wherein X, Xto X, R, and Lare as defined in the specification.

Organic electroluminescence element and material for organic electroluminescence

Provided is an organic electroluminescent element containing an anode, a cathode, and an organic functional layer containing one or a plurality of light-emitting layers, the organic functional layer being interposed between the anode and the cathode, wherein at least one of the light-emitting layers contains a compound having two condensed aromatic rings bonded to each other with a linking group; and the condensed aromatic rings form a &#x3c0;-&#x3c0; stacking structure in the molecule.

Organic electroluminescent element, and lighting device and display device each using same

One objective of the present invention is to provide an organic EL element which is suppressed in change in the resistance of a light emitting layer after passing a current therethrough for a long period of time, thereby having good emission spectrum chromaticity, and which is suppressed in change in the emission characteristics over time. Another objective of the present invention is to provide a lighting device and a display device, each of which uses the organic EL element. An organic electroluminescent element of the present invention is provided with a pair of electrodes and one or more organic layers that are arranged between the pair of electrodes, and is characterized in that one or more layers among the organic layers contain a compound that has a structure represented by general formula (1).

Organic electroluminescent element, and lighting device and display device which are provided with same

The organic electroluminescent element has a pair of electrodes and at least two organic functional layers including a light-emitting layer on a substrate. The light-emitting layer contains a host compound and a phosphorescent dopant. The light-emitting layer or the layer adjacent to the light-emitting layer contains quantum dots.

Organic electroluminescent element

A material for an organic electroluminescent element contains a compound represented by Formula (1): where Rto Rindependently represent a group such as a deuterium atom and a halogen atom; at least one of Rto Ris a group represented by Formula (2); if pluralities of Rto Rare present, these substituents may be the same or different or may be bonded to each other to form a ring; n1 represents an integer of 0 to 8; n2 represents an integer of 0 to 3; n3 represents an integer of 0 to 4; n1+n2+n3 is 1 or more; Cbz represents a carbazolyl group; X represents an oxygen atom or a sulfur atom; and Lrepresents a single bond or a divalent linking group.

Material for organic electroluminescent element, organic electroluminescent element, illumination device, and display device

A tandem-type organic photoelectric conversion element has at least a first electrode, a second electrode, and a plurality of bulk heterojunction layers each comprising a p-type organic semiconductor material and an n-type organic semiconductor material. The tandem-type organic photoelectric conversion element and a solar battery are characterized in that when the absorption wavelengths of the bulk heterojunction layers are such that a second bulk heterojunction layer absorbs up to a longer wavelength than a first bulk heterojunction layer, the LUMO energy level (LUMO(n1)) of the film of the n-type semiconductor in the first bulk heterojunction layer and the LUMO energy level (LUMO(n2)) of the film of the n-type semiconductor in the second bulk heterojunction layer satisfy the following equation (1):0.4 eV&#x2267;LUMO(1)&#x2212;LUMO(2)&#x2267;0.1 eV&#x2003;&#x2003;(1).

Tandem-type organic photoelectric conversion element and solar battery

An organic photoelectric conversion element which sequentially comprises a transparent first electrode, a photoelectric conversion layer that contains a p-type organic semiconductor material and an n-type organic semiconductor material, and a second electrode in this order on a transparent substrate.

Organic photoelectric conversion element, and solar cell and optical sensor array each using same

Provided is an electrochemical display element composed of a simple member structure, capable of driving at low voltage, and exhibiting high display contrast and white display reflectance, and further to provide the electrochemical display element exhibiting reduced variation in reflectance during repetitive driving even after storage for a long duration. Disclosed is an electrochemical display element possessing an N-oxyl derivative represented by the following Formula (1), an electrolyte and a pair of facing electrodes: wherein each of R, R, Rand Rindependently represents an aliphatic hydrocarbon group, an aromatic hydrocarbon group or a heterocyclic group, which may have a hydrogen atom or a substituent; Zrepresents a group of atoms having 2 or 3 atoms to form a cyclic structure; and Zmay also have a substituent.

Growing community of inventors

Hachioji, Japan

Takamune Hattori