Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Panasonic Corporation

Takaiki Nomura

Kazuhito Hato

Takahiro Suzuki

Kazufumi Ogawa

Kenichi Tokuhiro

Satoru Tamura

Noboru Taniguchi

Tomohiro Kuroha

Tadashi Otake

Takako Takebe

Tohru Nakagawa

Tadashi Ohtake

Nobuhiro Miyata

Kazuhito Hatoh

Satoshi Shimizu

Tsuyoshi Uemura

Tsuneo Shibata

Mamoru Isogai

Tadashi Ootake

Hidekata Kawanishi

Takahiro Kurabuchi

Toshimitsu Kurumizawa

Jun Oe

Yoshihiro Kozawa

Shuzou Tokumitsu

Norihisa Mino

Mamoru Soga

Yasuhisa Inada

Masahiko Tsukuda

Yasuo Takebe

Ryosuke Kikuchi

Shuzo Tokumitsu

Hideki Hata

Motomasa Yonezumi

Taku Hirasawa

Atsuo Okaichi

Tatsuo Fujita

Takashi Hashida

Hiroshi Satani

Kenichiro Ota

Akimitsu Ishihara

Yuko Fujii

Shuji Itou

Naomi Kaneko

Yoshifumi Moriya

Norihiro Miyamura

Junichi Nawama

Takashi Kouzaki

Hirosi Fukuda

Takahiro Sasaki

Ryousuke Kikuchi

Hiroyuki Takagi

Kunikazu Kuchino

Yasuyuki Nukina

An optical device includes a first substrate having a first surface, a second substrate having a second surface, at least one optical waveguide, and a plurality of spacers, disposed on at least either the first surface or the second surface, that include a first portion and a second portion. The first portion of the plurality of elastic spacers is at least one elastic spacer located in a region between the first substrate and the second substrate in which the first substrate and the second substrate overlap each other as seen from an angle parallel with a direction perpendicular to the first surface. The second portion of the plurality of elastic spacers is at least one elastic spacer located in a region in which the first substrate and the second substrate do not overlap each other as seen from an angle parallel with the direction perpendicular to the first surface.

Optical device, photodetection system, and method for manufacturing the same

An optical device includes a first substrate, a second substrate, a plurality of separation walls, one or more optical waveguides, and one or more spacers. The first substrate has a surface which extends in a first direction and a second direction intersecting the first direction. The second substrate faces the first substrate. The plurality of separation walls are positioned between the first substrate and the second substrate and extend in the first direction. The one or more optical waveguides are positioned between the first substrate and the second substrate and include one or more dielectric members which are positioned between the plurality of separation walls and which extend in the first direction. The one or more spacers are directly or indirectly sandwiched between the first substrate and the second substrate and positioned around the one or more optical waveguides.

Optical device and optical detection system

The present invention provides a porous coordination polymer having high ability of storing a gas. The porous coordination polymer according to the present invention comprises zinc cluster ions and one kind of tricarboxylic acid ions selected from the group consisting of the following chemical formula (I), the following chemical formula (II), and the following chemical formula (III); 

Porous coordination polymer and gas storage using the same

The present invention provides a porous coordination polymer, wherein the porous coordination polymer is formed of unit lattices; each of the unit lattices has a shape of a cube having eight vertexes and twelve sides; each of the vertexes of the unit lattices consists of a ZnO cluster; each of the sides of the unit lattices consists of aOOC&#x2014;C&#x2261;C&#x2014;COOgroup. At least a part of the unit lattices contains at least one hydrogen molecule only, or the inside of at least a part of the unit lattices is empty. The present invention provides a novel porous coordination polymer, especially, a porous coordination polymer suitable for separating hydrogen molecules from a gaseous mixture of the hydrogen molecules and impurity molecules (e.g., nitrogen molecules, oxygen molecules, or carbon dioxide molecules).

Porous coordination polymer and hydrogen molecule storage method, hydrogen storage device, hydrogen molecule separation method and hydrogen purifier using the same

Provided is a method for generating hydrogen. The method comprising (a) preparing a hydrogen generation device comprising a container, a photo-semiconductor electrode comprising a substrate, a light-blocking first conductive layer, and a first semiconductor photocatalyst layer, a counter electrode, a conductive wire for electrically connecting the first conductive layer to the counter electrode, and a liquid stored in the container, and (b) irradiating the first semiconductor photocatalyst layer with light to generate hydrogen on the counter electrode. The first conductive layer is interposed between the substrate and the first semiconductor photocatalyst layer. At least a part of the first semiconductor photocatalyst layer is in contact with the liquid. At least a part of the counter electrode is in contact with the liquid. The liquid is selected from the group consisting of an electrolyte aqueous solution and water. The substrate is formed of a resin.

Method for generating hydrogen and hydrogen generation device used therefor

The present invention provides a method for generating hydrogen by water splitting at a higher hydrogen generation efficiency. In the present method, used is a photoelectrochemical cell comprising a container, a liquid stored in the container, a semiconductor electrode contained in the container, and a counter electrode contained in the container. The semiconductor electrode comprises a first semiconductor layer, a light-transmissive conductor layer; and a second semiconductor layer.

Method for generating hydrogen by water splitting, and photoelectrochemical cell and semiconductor electrode used therefor

In a hydrogen producing device, an electrolyte flow path between a plurality of hydrogen producing cells is disposed in a hydrogen production side and in an oxygen production side, separately. Further, an electrolyte flow path is formed through which the electrolyte flows downward from the top between the plurality of hydrogen producing cells, and on the other hand the electrolyte flows upward from the bottom within each hydrogen producing cell. Moreover, a contact point with a produced gas or an atmosphere is provided in a pathway of the electrolyte flow path.

Hydrogen producing device and hydrogen producing unit and energy system including the hydrogen producing device and the hydrogen producing unit

Provided is a semiconductor photoelectrode comprising a first conductive layer; a first n-type semiconductor layer disposed on the first conductive layer; and a second conductive layer covering the first n-type semiconductor layer. The first n-type semiconductor layer has a first n-type surface region and a second n-type surface region. The first n-type surface region is in contact with the first conductive layer. The second n-type surface region is in contact with the second conductive layer. The first n-type semiconductor layer is formed of at least one selected from the group consisting of a nitride semiconductor and an oxynitride semiconductor. The second conductive layer is light-transmissive. The second conductive layer is formed of a p-type oxide conductor.

Semiconductor photoelectrode, photoelectrochemical cell, hydrogen generation method, and energy system

A semiconductor material of the present invention is a semiconductor material including an oxynitride containing at least one element selected from the Group 4 elements and Group 5 elements. In the oxynitride, part of at least one selected from oxygen and nitrogen is substituted with carbon. Nb is preferable as the Group 5 element.

Semiconductor material, optical hydrogen generating device using same, and method of producing hydrogen

A hydrogen producing cell of the present invention is provided with an electrolyte supply hole, an electrolyte discharge hole, a first hydrogen circulation hole and a second hydrogen circulation hole respectively penetrating a housing. In disposing the hydrogen producing cell, the electrolyte supply hole is arranged on a vertically upper side than the electrolyte discharge hole, the first hydrogen circulation hole is arranged on a vertically upper side than the electrolyte supply hole, and the second hydrogen circulation hole is arranged on a vertically upper side than the electrolyte discharge hole. By this configuration, it is possible to considerably reduce the length of a pipe and the number of manifolds concerning the electrolyte and hydrogen, and to link the hydrogen producing cells with one another simply and rationally.

Hydrogen producing cell, hydrogen producing device, and energy system including the hydrogen producing device

The NbON film of the present invention is a NbON film in which a photocurrent is generated by light irradiation. The NbON film of the present invention is desirably a single-phase film. The hydrogen generation device () of the present invention includes: an optical semiconductor electrode () including a conductor () and the NbON film () of the present invention disposed on the conductor (); a counter electrode () connected electrically to the conductor (); a water-containing electrolyte () disposed in contact with a surface of the NbON film () and a surface of the counter electrode (); and a container () containing the optical semiconductor electrode (), the counter electrode (), and the electrolyte (). In this device, hydrogen is generated by irradiating the NbON film () with light.

Method for producing NbON film

The present invention provides a method for adsorbing carbon dioxide onto porous metal-organic framework materials, a method for cooling porous metal-organic framework materials, a method for obtaining aldehyde using porous metal-organic framework materials and a method for warming porous metal-organic framework materials. In each method, porous metal-organic framework materials are used while an electric field or an electromagnetic field is applied to the porous metal-organic framework materials, or while a magnetic field or an electromagnetic field is applied to the porous metal-organic framework materials. If an electric field is applied, at least one organic compound included in the porous metal-organic framework materials is a polar compound. Instead, if a magnetic field is applied, at least one metal included in the porous metal-organic framework materials has an unpaired electron.

Method for adsorbing carbon dioxide onto porous metal-organic framework materials, method for cooling porous metal-organic framework materials, method for obtaining aldehyde using porous metal-organic framework materials, and method for warming porous metal-organic framework materials

A photoelectrochemical cell () includes: a semiconductor electrode () including a conductor () and semiconductor layers () disposed on the conductor (); a counter electrode () connected electrically to the conductor (); an electrolyte () in contact with surfaces of the semiconductor layer () and the counter electrode (); and a container () accommodating the semiconductor electrode (), the counter electrode () and the electrolyte (). A band edge level Eof a conduction band, a band edge level Eof a valence band, and a Fermi level Ein a surface near-field region of the semiconductor layer, and a band edge level Eof a conduction band, a band edge level Eof a valence band, and a Fermi level Ein a junction plane near-field region of the semiconductor layer with the conductor satisfy, relative to a vacuum level, E&#x2212;E&#x3e;E&#x2212;E, E&#x2212;E&#x3c;E&#x2212;E, E&#x3e;&#x2212;4.44 eV, and E&#x3c;&#x2212;5.67 eV. The Fermi level Ein the surface near-field region of the semiconductor layer and the Fermi level Ein the junction plane near-field region of the semiconductor layer with the conductor satisfy, relative to the vacuum level, &#x2212;5.67 eV&#x3c;E&#x3c;&#x2212;4.44 eV and &#x2212;5.67 eV&#x3c;E&#x3c;&#x2212;4.44 eV, respectively.

Photoelectrochemical cell and energy system using same

The present invention is a niobium nitride which has a composition represented by the composition formula NbNand in which a constituent element Nb has a valence of substantially +5. The method for producing the niobium nitride of the present invention includes the step of nitriding an organic niobium compound by reacting the organic niobium compound with a nitrogen compound gas.

Niobium nitride and method for producing same, niobium nitride-containing film and method for producing same, semiconductor, semiconductor device, photocatalyst, hydrogen generation device, and energy system

The hydrogen production device of the present invention includes: a first electrode including a conductive substrate and a photocatalytic semiconductor layer; a second electrode that is electrically connected to the first electrode and disposed in a second region opposite to a first region relative to the first electrode; the first region is defined as a region on a side of a surface of the first electrode in which the photocatalytic semiconductor layer is provided; a water-containing electrolyte solution; and a housing containing these. The first electrode is provided with first through-holes and the second electrode is provided with second through-holes; and the first through-holes and second through-holes form a communicating hole for allowing the first region and the second region to communicate with each other. An ion exchange membrane having substantially the same shape as the communicating hole is disposed in the communicating hole to close the communicating hole.

Hydrogen production device

Growing community of inventors

Osaka, Japan

Takaiki Nomura