Sharp Kabushiki Kaisha Corporation

Other

Osaka Diamond Industrial Co.

The Ishizuka Research Institute, Ltd.

Kazuhito Nishimura

Hiroshi Ishizuka

Yoshiyuki Nasuno

Satoru Hosomi

Chia-Fu Chen

Ryoji Matsui

Noriyoshi Kohama

Ensei Ko

Kazuo Yamada

Takashi Hayakawa

Hiroshi Yamamoto

Tohru Takeda

Akio Hara

Akimitsu Hatta

Yasushi Matsumoto

Hiroshi Tomimori

Akio Hiraki

Toshimichi Ito

Hiroshi Makita

Yoshitaka Sugita

Takashi; Hayakawa

A thin-film solar cell includes a cell having a transparent electrode layer, a photoelectric conversion layer, and a back electrode layer stacked on a transparent insulation substrate. A plurality of cells are connected in series to constitute a cell string. A bus bar is arranged on the back electrode layer of an end cell constituting the cell string. The thin-film solar cell has a photoelectric conversion layer on a series-connection direction end of the transparent electrode layer. In plan view, a series-connection direction end of the back electrode layer at an end of the cell string and the series-connection direction end of the transparent electrode layer at the end of the cell string do not overlap, while the bus bar and the transparent electrode layer at the end cell constituting the cell string overlap at least partially. A method of fabricating the thin-film solar cell is provided.

Thin-film solar cell and method of fabricating thin-film solar cell

A substratefor a photoelectric conversion device includes a first transparent conductive layerformed on at least a part of the surface region of a transparent substrate, the first transparent conductive layerhaving at least an opening portionexposing the substrate

Substrate for photoelectric conversion device, photoelectric conversion device, and stacked photoelectric conversion device

A bidirectional DC/DC converter includes a bidirectional DC/AC conversion circuit including a push-pull circuit connected between voltage terminals and a winding and having a switching element and a switching element coupled to opposing ends of the winding respectively, and an up-conversion circuit coupled to the push-pull circuit and the voltage terminals, and the up-conversion circuit includes an inductor for allowing passage of a current through the winding, the switching element in an ON state and the switching element in an ON state owing to stored magnetic energy, and a switching element forming a current path going through the voltage terminal, the inductor and the voltage terminal but not through the switching element and the switching element as it is turned on.

Bidirectional DC/DC converter and power conditioner

A power control system includes a distribution unit distributing power supplied from a power system to a plurality of power demanding facilities, and a measurement unit measuring a value of running power between the power system and the distribution unit. A power control instruction is transmitted to a power demanding facility in the event of the condition of TLP&#x3c;K1 (K1 indicates a threshold value used to detect reverse power flow) is established when the running power flowing from the power system towards the distribution unit is taken as a positive value. The power control instruction instructs a power storage device performing a discharging process to suppress the amount of power supplied in the direction towards the power system, and instructs a power storage device currently performing a charging process to increase the amount of power charged in a corresponding storage battery.

Power control system for distributing power to power demanding facility

An electric power supply system is provided for feeding an output of a DC power source to a load at high efficiency and, without complicated controlling, for allowing for interchange of electric power among a commercial power system, a DC power source and a load. An electric power supply system includes a DC bus line for connecting a DC generator, a load and system power. The electric power supply system comprises a DC/DC converter connected between the DC generator and the DC bus line for controlling an output voltage to the DC bus line at a voltage V; an inverter connected between the system power and the DC bus line for operating a control in response to an input voltage Vfrom the DC bus line; and an AC/DC converter connected between the system power and the DC bus line for controlling an output voltage to the DC bus line at a voltage V, wherein the respective voltages are set as VVV

Electric power supply system

A power supply apparatus converting electric power stored in a first power storage unit into a prescribed voltage for supply to a load includes: a power storage unit-side terminal coupled to the first power storage unit; a second power storage unit; a load-side terminal coupled to the load; a converter unit for increasing output voltage of the first power storage unit to a first voltage and outputting the first voltage to the load-side terminal at a time of discharging of the first power storage unit; a step-up circuit for increasing the output voltage of the first power storage unit and supplying the increased voltage to the second power storage unit; and a backflow prevention circuit arranged between the second power storage unit and the load-side terminal to allow current to flow from the second power storage unit to the load-side terminal and block current flowing from the load-side terminal to the second power storage unit.

Power supply apparatus supplying power stored in power storage unit to load and power supply system including power supply apparatus

A reliable power conditioner comprises: a power converting circuit for converting direct-current power obtained from a direct-current power source to alternating-current power of a commercial power system; a charger/discharger circuit for charging the direct-current power obtained from the direct-current power source to an accumulator or discharging the direct-current power stored in the accumulator; a control circuit for controlling the power converting circuit and the charger/discharger circuit; and a power source selecting circuit for selecting at least one of first, second, and third power source circuits and supplying power to the control circuit.

Power conditioner

The semiconductor of the present invention has iron sulfide and a forbidden band control element contained in the iron sulfide. The forbidden band control element has a property capable of controlling the forbidden band of iron sulfide on the basis of the number density of the forbidden band control element in the iron sulfide. An n-type semiconductor is manufactured by incorporating a group 13 element of the IUPAC system into iron sulfide. Moreover, a p-type semiconductor is manufactured by incorporating a group Ia element into iron sulfide. A semiconductor junction device or a photoelectric converter is manufactured by using the n-type semiconductor and the p-type semiconductor.

Iron sulfide semiconductor doped with Mg or Zn, junction devices and photoelectric converter comprising same

A photoelectric conversion device comprising: a pin-type photoelectric conversion layer constituted of a p-type semiconductor layer, an i-type semiconductor layer and an n-type semiconductor layer, wherein the p-type semiconductor layer contains silicon atoms and nitrogen atoms, which is possible to improve photoelectric conversion efficiency.

Photoelectric conversion device and manufacturing method thereof

The principal objects of the invention is to provide diamond fine particles with a surface nature so improved as to form a stable, uniform suspension or dispersion in a common medium such as water and alcohol. Another object is to provide an effective technique for producing hydrophilic diamond fine particles by chemically modifying the particle surface nature, while removing at the same time contaminants and foreign materials which coexist with the diamond. In the invention, diamond particles are treated by boiling in the treatment fluid of sulfuric acid solution, which is in particular of concentrated or fuming nature, at a temperature more than 200&deg; C., which is preferably 250&deg; C. or more.

Hydrophilic diamond particles and method of producing the same

Superhard film-coated member and method of manufacturing the same

A method is provided for efficiently producing an entirely quality-controlled CVD diamond. A CVD process is interrupted at an early stage and the deposit is taken out of the reaction chamber, before a significant mass is accumulated, and is inspected by means of cathodoluminescence. The spectrum are compared with a given reference in terms of peak position, half width and 20%-value width in coordination. The observed deviation allows to determine whether to maintain or alter the settings. A diamond substance of acceptable quality which is properly specified in terms of the CL parameters is also provided.

Method of producing diamond of controlled quality and product produced

Making a diamond substance exhibiting a cathodoluminescence spectrum with the peak at a photon energy greater than 2.8 eV (electron volt), the half-value and 20%-value width not exceeding 0.5 eV and 0.8 eV, respectively, comprising: providing a substrate in a closed chamber, introducing a matrix gas comprising H.sub.2 and one selected from hydrocarbon and CO to said chamber, exciting the gas to create a plasma while heating said substrate to a temperature of at least 700.degree. C. and, thus, causing deposition and growth of diamond substance which is crystallographically diamond, controlling parameters of the deposition by means of the cathodoluminescence record and recovering the diamond substance from the chamber.

Growing community of inventors

Osaka, Japan

Kazuhito Nishimura