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7588957 |
CVD process gas flow, pumping and/or boosting
The present invention generally comprises a method and apparatus for supplemental pumping, gas feed, and/or RF current for a process. When depositing amorphous silicon, the amount of process gases,...
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7553691 |
Method and apparatus of multiplejunction solar cell structure with high band gap heterojunction middle cell
A method and a multijunction solar device having a high band gap heterojunction middle solar cell are disclosed. In one embodiment, a triple-junction solar device includes bottom, middle, and top...
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7514725 |
Nanophotovoltaic devices
The present invention provides nanophotovoltaic devices having sizes in a range of about 50 nm to about 5 microns, and method of their fabrication. In some embodiments, the nanophotovoltaic device...
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7498508 |
High voltage solar cell and solar cell module
A solar cell apparatus and process for making and using same involving a semiconductor wafer having a front side surface and a metallized back side surface and a semiconductor p/n junction between...
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7495167 |
Silicon solar cell and production method thereof
It is an object of the present invention to provide a silicon solar cell with n + pp + BSF structure using solar grade silicon substrate, having a life time close to the initial level of the...
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7352044 |
Photoelectric transducer, photoelectric transducer apparatus, and iron silicide film
A solar battery 10 comprises a metal electrode layer 12 , a pin junction 100 , and a transparent electrode layer 16 which are successively laminated on a substrate 11 such as a silicon...
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RE39967 |
Solid-state photoelectric device
A solid state photovoltaic device is formed on a substrate and includes a photoactive channel layer interposed between a pair of electrodes. The photoactive channel layer includes a first material...
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7271333 |
Apparatus and method of production of thin film photovoltaic modules
The present invention relates to light-weight thin-film photovoltaic cells, methods for making cells, modules made from cells, and methods for making modules from cells. The invention teaches a...
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7199303 |
Optical energy conversion apparatus
An optical energy conversion apparatus 10 includes a first impurity doped semiconductor layer 5 , formed on a substrate, and which is of a semiconductor material admixed with a first impurity,...
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7135350 |
Use of doped silicon dioxide in the fabrication of solar cells
In one embodiment, a method of forming doped regions in a substrate of a back side contact solar cell includes the steps of depositing a first doped oxide layer on a back side of a substrate,...
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7126052 |
Isoelectronic surfactant induced sublattice disordering in optoelectronic devices
A method of disordering a layer of an optoelectronic device including; growing a plurality of lower layers; introducing an isoelectronic surfactant; growing a layer; allowing the surfactant to...
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7122736 |
Method and apparatus for fabricating a thin-film solar cell utilizing a hot wire chemical vapor deposition technique
A thin-film solar cell is provided. The thin-film solar cell comprises an a-SiGe:H (1.6 eV) n-i-p solar cell having a deposition rate of at least ten (10) Å/second for the a-SiGe:H intrinsic...
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7122735 |
Quantum well energizing method and apparatus
A method and apparatus that converts energy provided by a chemical reaction into energy for charging a quantum well device. The disclosed apparatus comprises a catalyst layer that catalyzes a...
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7122733 |
Multi-junction photovoltaic cell having buffer layers for the growth of single crystal boron compounds
The present invention provides a solar cell comprising a substrate, a first buffer layer disposed above the base layer, a second buffer layer disposed above the first buffer layer, a first boron...
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7115811 |
Semiconductor body forming a solar cell with a bypass diode
The present invention is directed to systems and methods for protecting a solar cell. The solar cell includes first solar cell portion. The first solar cell portion includes at least one junction...
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7098394 |
Method and apparatus for powering circuitry with on-chip solar cells within a common substrate
A system and method for providing power to a light-powered transponder. In order to create a sufficient voltage differential, two different photovoltaic elements are used. The photovoltaic elements...
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7087831 |
Photoelectric conversion device and method of production thereof
A photoelectric conversion device comprising at least an electron acceptive charge transfer layer, an electron donative charge transfer layer, and a light absorption layer existing between the...
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7081584 |
Solar based electrical energy generation with spectral cooling
Method and system for converting solar energy into electrical energy utilizing serially coupled multijunction-type photovoltaic cells in conjunction with a form of spectral cooling. The latter...
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7064263 |
Stacked photovoltaic device
A stacked photovoltaic device comprises at least three p-i-n junction constituent devices superposed in layers, each having a p-type layer, an i-type layer and an n-type layer which are formed of...
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7030313 |
Thin film solar cell and method of manufacturing the same
A thin film solar cell comprises a p-layer, an i-layer and an n-layer formed in this order as a pin junction on a substrate in which the p-layer and the i-layer are thin silicon films each...
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6998288 |
Use of doped silicon dioxide in the fabrication of solar cells
In one embodiment, a method of forming doped regions in a substrate of a back side contact solar cell includes the steps of depositing a first doped oxide layer on a back side of a substrate,...
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6960718 |
Method for manufacturing a photovoltaic element
In a photovoltaic element according to the present invention, a first transparent conductive film, a second transparent conductive film, a p-type semiconductor film, an intrinsic semiconductor...
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6956163 |
Apparatus and method for photovoltaic energy production based on internal charge emission in a solid-state heterostructure
An apparatus and method for solar energy production comprises a multi-layer solid-state structure including a photosensitive layer, a thin conductor, a charge separation layer, and a back ohmic...
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6946029 |
Sheet manufacturing method, sheet, sheet manufacturing apparatus, and solar cell
An inexpensive sheet with excellent evenness and a desired uniform thickness can be obtained by cooling a base having protrusions, dipping the surfaces of the protrusions of the cooled base into a...
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6911594 |
Photovoltaic device
A photovoltaic device including a plurality of unit devices stacked, each unit device comprising a silicon-based non-single-crystal semiconductor material and having a pn or pin structure, in which...
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6870088 |
Solar battery cell and manufacturing method thereof
A solar battery cell of a serial stacked structure, increasing scattering of light, exhibiting good power-generating efficiency per unit area, and ensuring high reliability and a large yield in the...
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6864414 |
Apparatus and method for integral bypass diode in solar cells
A solar cell having a multijunction solar cell structure with a bypass diode is disclosed. The bypass diode provides a reverse bias protection for the multijunction solar cell structure. In one...
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6825408 |
Stacked photoelectric conversion device
A stacked photoelectric conversion device comprising at least two photoelectric conversion element layers sandwiched between a first electrode layer and a light receiving second electrode layer,...
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6815736 |
Isoelectronic co-doping
Isoelectronic co-doping of semiconductor compounds and alloys with deep acceptors and deep donors is used to decrease bandgap, to increase concentration of the dopant constituents in the resulting...
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6809250 |
Repaired solar panel and method of preparing same
In a method of repairing a solar panel having a defective solar cell or cells, a replacement cell (or cells) is glued onto a defective solar cell or cells of the solar panel, and is electrically...
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6803513 |
Series connected photovoltaic module and method for its manufacture
A photovoltaic module includes at least a first and a second photovoltaic cell each having a substrate electrode, a top electrode and a photovoltaic semiconductor body disposed therebetween in...
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6787693 |
Fast turn on/off photovoltaic generator for photovoltaic relay
A photovoltaic generator constructed on an SOI N − layer subdivided into a series of connected isolated tubs whereby the isolated tubs are subdivided by a matrix of trenched wells. A P + ...
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6787692 |
Solar cell substrate, thin-film solar cell, and multi-junction thin-film solar cell
A solar cell substrate has irregularities on a surface which is in contact with a photo-electric conversion layer, and light is incident on the side of the irregularities. The height of the...
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6784358 |
Solar cell structure utilizing an amorphous silicon discrete by-pass diode
A solar cell structure includes a solar cell that produces a voltage when illuminated, and a discrete amorphous silicon by-pass diode. A first by-pass diode terminal of the amorphous silicon...
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6750394 |
Thin-film solar cell and its manufacturing method
A thin-film solar cell comprises a set of a transparent conductive layer and a photoelectric conversion layer laminated in this order on a substrate, wherein the photoelectric conversion layer is...
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6743974 |
Silicon solar cell with germanium backside solar cell
A multijunction solar cell comprising a silicon solar cell with a germanium solar cell formed on the backside of the silicon solar cell. The silicon solar cell and germanium solar cell are directly...
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6737123 |
Silicon-based film formation process, silicon-based film, semiconductor device, and silicon-based film formation system
A silicon-based film is formed superimposing a direct-current potential on the high-frequency power to set the potential of the high-frequency power feed section to a potential which is lower by V...
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6734352 |
Photoelectric conversion device
The present invention provides a photoelectric conversion device that improves photoelectric conversion efficiency with the interaction between a transparent substrate with a transparent conductive...
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6680432 |
Apparatus and method for optimizing the efficiency of a bypass diode in multijunction solar cells
Apparatus and Method for Optimizing the Efficiency of a Bypass Diode in Solar Cells. In a preferred embodiment, a layer of TiAu is placed in an etch in a solar cell with a contact at a doped layer...
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6677516 |
Photovoltaic cell and process for producing the same
A dye-sensitized photovoltaic cell comprising an electroconductive support, a porous photovoltaic layer constituted with a porous semiconductor layer containing a photosensitizing dye, a hole...
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6670544 |
Silicon-germanium solar cell having a high power efficiency
A silicon-germanium thin-film solar cell having a quantum well structure as an active base layer within the space-charge region of the silicon p-n diode junction. The quantum well structure is...
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6660928 |
Multi-junction photovoltaic cell
A solar cell comprising a substrate, a buffer layer, a first subcell, a second subcell, and a third subcell, where said first subcell, said second subcell, and said third subcell are lattice...
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6653554 |
Thin film polycrystalline solar cells and methods of forming same
A thin film polycrystalline solar cell which includes a substrate, a first semiconductor layer provided on the substrate and including Si highly doped with a conductivity-type controlling impurity,...
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6653550 |
Integrated thin-film photoelectric conversion module
An integrated thin-film photoelectric conversion module includes a multi-layered film including a first electrode layer, a semiconductor layer and a second electrode layer stacked on a main surface...
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6613974 |
Tandem Si-Ge solar cell with improved conversion efficiency
P-type and n-type regions are defined in the first surface of a substrate upon which is formed an epitaxial layer of preferably Si—Ge material, preferably capped by Si material. During epitaxy...
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6586669 |
Lattice-matched semiconductor materials for use in electronic or optoelectronic devices
A perfectly or approximately lattice-matched semiconductor layer for use in an electronic or optoelectronic device. Perfectly lattice-matched (“PLM”) semiconductor layers prevent or lessen the...
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6580027 |
Solar cells using fullerenes
Organic photosensitive optoelectronic devices are disclosed. The devises comprise photoconductive organic thin films in a heterostructure, which include an exciton blocking layer to enhance device...
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6566595 |
Solar cell and process of manufacturing the same
A solar cell having a p-type semiconductor layer and an n-type semiconductor layer made of a first compound semiconductor material, and a semiconductor layer sandwiched between the p-type...
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6552259 |
Solar cell with bypass function and multi-junction stacked type solar cell with bypass function, and method for manufacturing these devices
In this bypass-function added solar cell, a plurality of island-like p + regions, which is third regions, are formed at a boundary between a p-type region and an n-type region layer constituting a...
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6524880 |
Solar cell and method for fabricating the same
A technique for fabricating a solar cell includes an n + emitter region first being formed on a front surface of the cell, and then front and rear insulating layers being formed on both sides of...
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