Fujitsu Corporation

Toshihisa Anazawa

Yoshihiko Imanaka

Toshio Manabe

Hideyuki Amada

Naoki Awaji

Sachio Ido

Mineharu Tsukada

Fumiaki Kumasaka

Masato Wakamura

John David Baniecki

Nawalage Florence Cooray

Florence Nawalage Cooray

A photoexcitable material includes: a solid solution of MN (where M is at least one of gallium, aluminum and indium) and ZnO, wherein the photoexcitable material includes 30 to 70 mol % ZnO and has a band gap energy of 2.20 eV or less.

Method for manufacturing photoexcitable material

A photochemical electrode includes: an electrically conductive layer; and a photoexcitation material layer provided over the electrically conductive layer and including a photoexcitation material, wherein the photoexcitation material layer is one of a first photoexcitation material layer in which a potential of the conduction band minimum decreases from a second surface opposite to a first surface on the side of the electrically conductive layer toward the first surface and a second photoexcitation material layer in which a potential of the valence band maximum decreases from the second surface toward the first surface.

Method for producing photochemical electrode

A photochemical electrode includes: an electrically-conductive layer; and a photo-excited material layer including a photo-excited material provided over the electrically-conductive layer, wherein in a surface of the photo-excited material layer, a lattice plane having highest atomic density in a crystal structure of the photo-excited material is oriented in a surface direction of the surface of the photo-excited material layer.

Method for generating photochemical electrode

A photochemical electrode includes a conductive oxide. Fermi energy of the conductive oxide is higher than a first energy minimum of a first band having a lowest energy and is lower than a second energy minimum of a second band having a higher energy than the first band among bands whose curvatures are positive in reciprocal space. The first energy minimum and the second energy minimum are at the same point of wave vector. A difference between the second energy minimum and the first energy minimum is not less than 1 eV nor more than 3 eV, and is smaller than a difference between the first energy minimum and an energy maximum of a band having a highest energy among bands whose curvatures are negative.

Photochemical electrode and hydrogen evolution device

A photocatalyst, represented by the following general formula (1):X(VO)(OH)&#x2003;&#x2003;General Formula (1)

Photocatalyst, and method for producing photocatalyst

A photocatalytic filter including first photocatalytic particles each of which is a composite of an adsorbent and titanium apatite, second photocatalytic particles each of which is glass coated with titanium apatite, a light source configured to emit ultraviolet rays, and a container accommodating the first photocatalytic particles, the second photocatalytic particles, and the light source.

Photocatalytic filter, purification device, and purification method

A photoexcitation material includes: a wurtzite type solid solution crystal containing t gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A&#x3e;B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.

Method for producing a photoexcitation material

A photoexcitation material includes: a wurtzite type solid solution crystal containing gallium, zinc, nitrogen and oxygen, wherein a peak (A) of an existence ratio of nitrogen or oxygen which is a first adjacent atom of the gallium or zinc and a peak (B) of an existence ratio of gallium or zinc which is a second adjacent atom of the gallium or zinc satisfy a relational expression of A&#x3e;B in a relationship between a distance and the existence ratio of the adjacent atom of the gallium or zinc, the relationship being obtained from an extended X-ray absorption fine structure analysis.

Photoexcitation material

There are provided an apparatus for evaluating a piezoelectric film, which contains: a detection unit containing a pair of probes, each probe containing a cantilever and a probe tip; and an evaluation unit, wherein the detection unit is configured to respectively place the probe tips on both surfaces of a sample comprising a piezoelectric film so as to detect a displacement magnitude of the pair of probes, and the evaluation unit is configured to evaluate either or both a deformation and a displacement of the piezoelectric film based upon the detected displacement magnitude of the pair of probes, and a method for evaluating a piezoelectric film by using the apparatus for evaluating a piezoelectric film.

Growing community of inventors

Sagamihara, Japan

Toshihisa Anazawa