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7633006 |
Back side contact solar cell with doped polysilicon regions
In one embodiment, a back side contact solar cell includes a tunnel oxide layer formed on a back side of a substrate. A polysilicon layer is formed on the tunnel oxide layer, and dopant sources are...
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7629257 |
Combined etching and doping substances
The invention concerns etching and doping substances free of hydrochloric/fluoride acid used for etching inorganic layers as well as for doping subjacent layers. The invention also concerns a...
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7629236 |
Method for passivating crystal silicon surfaces
In a method of making a c-Si-based cell or a μc-Si-based cell, the improvement of increasing the minority charge carrier's lifetime, comprising: a) placing a c-Si or polysilicon wafer into CVD...
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7595543 |
Semiconductor processing method for increasing usable surface area of a semiconductor wafer
The invention provides a method for increasing the usable surface area of a semiconductor wafer having a substantially planar surface and a thickness dimension at right angles to said substantially...
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7554031 |
Preventing harmful polarization of solar cells
In one embodiment, harmful solar cell polarization is prevented or minimized by providing a conductive path that bleeds charge from a front side of a solar cell to the bulk of a wafer. The...
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7550665 |
Stacked photoelectric converter
In a stacked-layer type photoelectric conversion device, a plurality of photoelectric conversion units are stacked on a substrate, each of which includes a one conductivity-type layer, a...
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7537955 |
Low temperature nano particle preparation and deposition for phase-controlled compound film formation
The present invention is directed to different methods used in the formation of an ink, as well as being directed to the formation of layers used in the fabrication of a solar cell, particularly...
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7517465 |
Ultra lightweight photovoltaic device and method for its manufacture
An ultra lightweight semiconductor device such as a photovoltaic device is fabricated on a non-etchable barrier layer which is disposed upon an etchable substrate. The device is contacted with an...
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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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7442320 |
Nanostructured materials and photovoltaic devices including nanostructured materials
Nanostructured materials and photovoltaic devices including nanostructured materials are described. In one embodiment, a nanostructured material includes: (a) a first nano-network formed from a...
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7390689 |
Systems and methods for light absorption and field emission using microstructured silicon
Methods and systems for absorbing infrared light, and for emitting current are described. A sample, such as a sample containing mainly silicon, is microstructured by at least one laser pulse to...
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7388147 |
Metal contact structure for solar cell and method of manufacture
In a solar cell having p doped regions and n doped regions alternately formed in a surface of a semiconductor wafer in offset levels through use of masking and etching techniques, metal contacts...
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7381887 |
Solar cell and method and apparatus for manufacturing solar cell
A thin solar cell is provided, a decreased amount of an Al paste used for the solar cell without occurrence of a problem of ball-up which is a defect in appearance. A method of manufacturing such a...
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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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7339110 |
Solar cell and method of manufacture
A solar cell that is readily manufactured using processing techniques which are less expensive than microelectronic circuit processing. In preferred embodiments, printing techniques are utilized in...
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7326587 |
Semiconductor memory device having capacitor and method of forming the same
A semiconductor memory device having a capacitor is disclosed. The capacitor includes a bottom capacitor surface formed of a silicon-germanium crystalline layer or a dual layer in which a...
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7309832 |
Multi-junction solar cell device
A multi-junction solar cell device ( 10 ) is provided. The multi-junction solar cell device ( 10 ) comprises either two or three active solar cells connected in series in a monolithic structure....
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7285720 |
Solar cell with high-temperature front electrical contact, and its fabrication
A solar cell has an active semiconductor structure and a back electrical contact overlying and contacting an active semiconductor structure back side. A front electrical contact is applied...
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7279632 |
Multi-element polycrystal for solar cells and method of manufacturing the same
Provided is a multi-element polycrystal formed by cooling a melt containing multiple components while controlling a cooling rate. The multi-element polycrystal is a mixed crystal essentially formed...
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7276658 |
Manufacturing a solar cell foil connected in series via a temporary substrate
The invention pertains to a method of manufacturing a photovoltaic foil provided with solar cells connected in series, which method comprises the following steps: a) providing a temporary substrate...
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7276312 |
Light-detectable solid thin-film secondary battery
To provide novel devices constituting light detection systems with a simple configuration, a low maintenance cost, a reduced size and weight, and high reliability by integrating light detection...
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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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7253355 |
Method for constructing a layer structure on a substrate
The invention relates to a method for constructing a layer structure on an especially fragile flat substrate. In order for thin, fragile flat substrates to be able to be subjected to refinement or...
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RE39640 |
Conductive isostructural compounds
A family of isostructural compounds have been prepared having the general formula A n Pb m Bi n O 2n+m . These compounds possess a NaCl lattice type structure as well as low thermal conductivity...
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7217883 |
Manufacturing a solar cell with backside contacts
A solar cell involving a silicon wafer having a basic doping, a light-receiving front side and a backside, which is provided with an interdigital semiconductor pattern, which interdigital...
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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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7189917 |
Stacked photovoltaic device
To provide a stacked photovoltaic device including: at least one pair of a first photovoltaic device and a second photovoltaic device stacked in order from a light incident side; and a selective...
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7179987 |
Solar cell and method for making
A method for making a solar cell from crystalline silicon, and a solar cell made from crystalline silicon produced according to the method. Neighboring p x n x junctions are electrically insulated...
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7148417 |
GaP/silicon tandem solar cell with extended temperature range
A two-junction solar cell has a bottom solar cell junction of crystalline silicon, and a top solar cell junction of gallium phosphide. A three (or more) junction solar cell has bottom solar cell...
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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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7119271 |
Wide-bandgap, lattice-mismatched window layer for a solar conversion device
A photovoltaic cell or other optoelectronic device having a wide-bandgap semiconductor used in the window layer. This wider bandgap is achieved by using a semiconductor composition that is not...
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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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7091411 |
Multicrystalline laser-crystallized silicon thin layer solar cell deposited on a glass substrate and method of producing
The invention relates to a multicrystalline laser-crystallized silicon thin layer solar cell deposited on a glass substrate (a), which is configured for illuminating from the substrate side, and to...
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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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7075002 |
Thin-film photoelectric conversion device and a method of manufacturing the same
A method of manufacturing a thin-film solar cell, comprising the steps of: forming an amorphous silicon film on a substrate; placing a metal element that accelerates the crystallization of silicon...
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7067069 |
Silane composition, silicon film forming method and solar cell production method
A silane composition for preparing a semiconductor thin films of a solar cell is disclosed. The silane composition contains a polysilane compound represented by the formula Si n R m (n is an...
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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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7026662 |
Semiconductor device having a photon absorption layer to prevent plasma damage
A MOSFET device structure and a method of manufacturing the same, in which a photon absorption layer is formed over a gate structure and a substrate in order to avoid plasma induced damage to the...
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7026275 |
Method of reducing photoelectric device leakage current in conjugated polymer and conjugated polymer composition
A method of reducing the photoelectric device leakage current caused by residual metal ions in conjugated polymer. A chelating agent is added to a conjugated polymer material, thereby the...
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7026543 |
Photovoltaically active materials and cells containing them
In a photovoltaic cell having a photovoltaically active semiconductor material constituted by a plurality of metals or metal oxides, the photovoltaically active material is selected from a
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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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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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6940009 |
Solar cell
Improved solar cell composed of an upper layer or mesh of a conductive nature, a lower layer or mesh also of a conductive nature, and a series of intermediate semiconductor layers composed of a...
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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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6858308 |
Semiconductor element, and method of forming silicon-based film
The invention provides a semiconductor element having a semiconductor junction composed of silicon-based films, at least one of the silicon-based films containing a microcrystal. The microcrystal...
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6858462 |
Enhanced light absorption of solar cells and photodetectors by diffraction
Enhanced light absorption of solar cells and photodetectors by diffraction is described. Triangular, rectangular, and blazed subwavelength periodic structures are shown to improve performance of...
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6821875 |
Low area metal contacts for photovoltaic devices
In a method for forming a contact on semiconductor surface, a crystalline silicon surface is first oxidized, following which an aluminium layer is deposited onto the oxide layer. A layer of...
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6822157 |
Thin film solar battery module
In a thin film solar battery module, a flat glass substrate with non-monocrystal silicon type thin film solar cells formed thereon, a space layer, and a chilled figured glass are sequentially...
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