Hamamatsu-photonics K.k.

Kyushu University

Other

Japan Aerospace Exploration Agency

Nagoya Institute of Technology

Asahi Kasei Emd Corporation

Shigeo Hara

Takahiko Yamanaka

Chihaya Adachi

Toru Hirohata

Hajime Nakanotani

Tadataka Edamura

Katsushi Watanabe

Yoshihiro Takiguchi

Takashi Watanabe

Katsuhiro Yamamoto

Wataru Akahori

Shigeru Okamoto

Tatsuhiro Iwama

Mayu Okada

Masahiro Mouri

Provided is an organic light-emitting element that is excited by an electromagnetic wave. The organic light-emitting element includes: a first electrode; a second electrode disposed to face the first electrode; an organic light-emitting layer disposed between the first electrode and the second electrode, where separation of charges occurs due to incidence of the electromagnetic wave; a hole transporting layer disposed between the first electrode and the organic light-emitting layer; and a charge block layer disposed between the second electrode and the organic light-emitting layer. The charge block layer has a LUMO level shallower than a LUMO level of organic light emitters included in the organic light-emitting layer.

Organic light-emitting element, light-emitting device, and light-emitting method

Provided is a light-emitting device including an organic light-emitting element and a control unit that controls the organic light-emitting element. The organic light-emitting element includes a first electrode, a second electrode, and an organic light-emitting layer which is disposed between the first electrode and the second electrode and in which separation of charges occurs due to incidence of excited light. The control unit changes a potential difference between the first electrode and the second electrode so that recoupling of the charges occurs, in a second period after passage of a delay period from a first period in which the excited light is incident to the organic light-emitting layer.

Light-emitting device, light-emitting method, and organic light-emitting element

An organic electro-luminescent element having a luminescence peak in a near-infrared range, comprising a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode, wherein the luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material, wherein each of the delayed fluorescent material and the luminescent material have a structure with two or three benzene rings bonded to an N atom.

Organic electro-luminescent element and bioinstrumentation device

An organic EL elementincludes a light emitting layercontaining an organic light emitting material, a light shielding electrodebeing arranged on one surfaceside of the light emitting layera light transmissive electrodebeing arranged on the other surfaceside of the light emitting layera reflection filterbeing arranged on a side opposite to the light emitting layerwith respect to the light transmissive electrodeand selectively reflecting a light Lfrom the light emitting layer

Organic electroluminescent element and measurement apparatus

Organic photoelectric conversion element has a first electrode, a photoelectric conversion layer, and a second electrode. The photoelectric conversion layer has a first organic layer that contains a first organic semiconductor containing principally a p-type organic semiconductor, a second organic layer that contains a second organic semiconductor containing principally an n-type organic semiconductor, and an intermediate layer that contains the first organic semiconductor and the second organic semiconductor. The second organic layer is disposed at a side of the second electrode relative to the first organic layer. The intermediate layer is between the first organic layer and the second organic layer and reaches each of these layers. The thickness of the second organic layer is greater than the sum of the thicknesses of the first organic layer and intermediate layer.

Organic photoelectric conversion element and method for producing same

With a probein which an end of the organic photoelectric-conversion layeron a projection optical pathside is covered by an upper electrodehaving a light-blocking effect, light passing through the projection optical pathfrom a light source can be prevented from directly entering the organic photoelectric-conversion layer

Probe for bioinstrumentation and bioinstrumentation device

An organic EL element having a luminescence peak in a near-infrared range comprises a positive electrode, a negative electrode, and at least one organic layer including a luminescent layer located between the positive electrode and the negative electrode. The luminescent layer comprises a host material, a delayed fluorescent material and a luminescent material. The LUMO and HOMO energy levels of the delayed fluorescent material and the luminescent material, the absorption spectrum of the luminescent material, and the emission spectrum of the delayed fluorescent material satisfy predetermined relationships.

A resin molded body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, each of the layers has a micro-phase separated structure including lamellar micro domains, each of the micro domains of the layers has a wave-like shape having amplitudes in the opposite direction of the front surface and the back surface, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.

Resin molded body

A structural color body is film-like and comprises a front surface layer disposed on a front surface side and a back surface layer disposed on a back surface side, the front surface layer and the back surface layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of distances predetermined in the micro domains of the front surface layer is larger than the wavelength in the visible light range, and distances predetermined in the micro domains of the back surface layer are equal to or less than the wavelength in the visible light range.

Structural color body

A structural color body is film-like and formed of a resin layer containing a block copolymer, the resin layer has a micro-phase separated structure including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, and in each of the micro domains, a maximum value of distances in the direction between the tops of convexities and the bottoms of concavities is larger than the wavelength in the visible light range.

A film-like structural color body comprises a front surface layer disposed on a front surface side, a back surface layer disposed on a back surface side, and an intermediate layer disposed between the front surface layer and the back surface layer, the front surface layer, the back surface layer and the intermediate layer contain block copolymers and have micro-phase separated structures including lamellar micro domains, each of the micro domains has a wave-like shape having amplitudes in the thickness direction of the structural color body, a maximum value of predetermined distances in the micro domains of the front surface layer and a maximum value of predetermined distances in the micro domains of the back surface layer are larger than the wavelength in the visible light range, and predetermined distances in the micro domains of the intermediate layer are equal to or less than the wavelength in the visible light range.

A microphase-separated structure comprising a block copolymer, which contains at least a block chain A consisting of a monomer A as a repeating unit and a block chain B consisting of a monomer B as a repeating unit, and a solvent, wherein the solvent has a temperature zone 1 where the block chain A and the block chain B are soluble and a temperature zone 2 where the block chain A is insoluble but the block chain B is soluble, and a structural period thereof varies by changing temperature between the temperature zone 1 and the temperature zone 2.

Microphase-separated structure, immobilized microphase-separated structure and wavelength-variable laser oscillator, temperature sensor and light filter using the structure

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Hamamatsu, Japan

Shigeo Hara