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7605328 Photovoltaic thin-film cell produced from metallic blend using high-temperature printing  
The metallic components of a IB-IIIA-VIA photovoltaic cell active layer may be directly coated onto a substrate by using relatively low melting point (e.g., less than about 500° C.) metals such as...
7604843 Metallic dispersion  
A compound film may be formed by formulating a mixture of elemental nanoparticles composed of the Ib, the IIIa, and, optionally, the VIa group of elements having a controlled overall composition....
7592538 Method of fabricating a multijunction solar cell with a bypass diode having an intrinsic layer  
A method of making a multijunction solar cell, including first and second solar cells on a substrate with a bypass diode having an intrinsic layer and operative for passing current when the...
7560641 Thin film solar cell configuration and fabrication method  
A new photovoltaic device configuration based on an n-copper indium selenide absorber and a p-type window is disclosed. A fabrication method to produce this device on flexible or rigid substrates...
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...
7544884 Manufacturing method for large-scale production of thin-film solar cells  
A method of manufacturing improved thin-film solar cells entirely by sputtering includes a high efficiency back contact/reflecting multi-layer containing at least one barrier layer consisting of a...
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...
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...
7339109 Apparatus and method for optimizing the efficiency of germanium junctions in multi-junction solar cells  
Apparatus and Method for Optimizing the Efficiency of Germanium Junctions in Multi-Junction Solar Cells. In a preferred embodiment, an indium gallium phosphide (InGaP) nucleation layer is disposed...
7319190 Thermal process for creation of an in-situ junction layer in CIGS  
The present invention relates generally to the field of photovoltaics and more specifically to manufacturing thin-film solar cells using a thermal process. Specifically, a method is disclosed to...
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....
7297868 Preparation of CIGS-based solar cells using a buffered electrodeposition bath  
A photovoltaic cell exhibiting an overall conversion efficiency of at least 9.0% is prepared from a copper-indium-gallium-diselenide thin film. The thin film is prepared by simultaneously...
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...
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...
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...
7217882 Broad spectrum solar cell  
An alloy having a large band gap range is used in a multijunction solar cell to enhance utilization of the solar energy spectrum. In one embodiment, the alloy is In 1−x Ga x N having an energy...
7202411 Photovoltaic and thermophotovoltaic devices with quantum barriers  
A photovoltaic or thermophotovoltaic device includes a diode formed by p-type material and n-type material joined at a p-n junction and including a depletion region adjacent to said p-n junction,...
7179677 ZnO/Cu(InGa)Se2 solar cells prepared by vapor phase Zn doping  
A process for making a thin film ZnO/Cu(InGa)Se 2 solar cell without depositing a buffer layer and by Zn doping from a vapor phase, comprising: depositing Cu(InGa)Se 2 layer on a metal back...
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...
7148123 Synthesis of layers, coatings or films using collection layer  
Systems and methods are described for synthesis of films, coatings or layers using templates. A method includes locating a template within at least one of a first precursor layer that is coupled to...
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...
7122734 Isoelectronic surfactant suppression of threading dislocations in metamorphic epitaxial layers  
A method of reducing propagation of threading dislocations into active areas of an optoelectronic device having a III–V material system includes growing a metamorphic buffer region in the...
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...
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...
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...
7087833 Nanostructure and nanocomposite based compositions and photovoltaic devices  
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that...
7087832 Nanostructure and nanocomposite based compositions and photovoltaic devices  
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that...
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...
7071407 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...
7053293 GaAs substrate with Sb buffering for high in devices  
GaAs substrates with compositionally graded buffer layers for matching lattice constants with high-Indium semiconductor materials such as quantum well infrared photoconductor devices and thermo...
7019208 Method of junction formation for CIGS photovoltaic devices  
Sulfur is used to improve the performance of CIGS devices prepared by the evaporation of a single source ZIS type compound to form a buffer layer on the CIGS. The sulfur may be evaporated, or...
6878871 Nanostructure and nanocomposite based compositions and photovoltaic devices  
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that...
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...
6822158 Thin-film solar cell and manufacture method therefor  
A thin-film solar cell including a transparent electrode layer, a semiconductor photovoltaic conversion layer, a rear transparent electrode layer and a rear reflective metal layer, said layers...
6818818 Concentrating solar energy receiver  
There is disclosed herein a concentrating solar energy receiver comprising a primary parabolic reflector having a center and a high reflectivity surface on a concave side of the reflector and...
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...
6787385 Method of preparing nitrogen containing semiconductor material  
A method of combining group III elements with group V elements that incorporates at least nitrogen from a nitrogen halide for use in semiconductors and in particular semiconductors in photovoltaic...
6768048 Sol-gel coatings for solar cells  
Methods for formulating and depositing a sol-gel coating onto a surface of a solar cell to provide improved radiation damage resistance. The sol-gel contains a solvent, alkoxyzirconium and an...
6706959 Photovoltaic apparatus and mass-producing apparatus for mass-producing spherical semiconductor particles  
A photoelectric conversion element is disposed in each of a plurality of recesses of a support. Light reflected by the inside surface of the recess shines on the photoelectric conversion element....
6689949 Concentrating photovoltaic cavity converters for extreme solar-to-electric conversion efficiencies  
A concentrating photovoltaic module is provided which provides a concentration in the range of about 500 to over 1,000 suns and a power range of a few kW to 50 kW. A plurality of such modules may...
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...
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...
6590150 Combination photovoltaic cell and RF antenna and method  
A combination photovoltaic cell and RF antenna in a single unit performs the dual functions of transmitting and receiving RF signals to and from a transceiver and converting light waves to electric...
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...
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...
6559372 Photovoltaic devices and compositions for use therein  
Systems and methods are described for compositions, apparatus and/or electronic devices. A composition, includes a composition layer defining a first surface and a second surface, the composition...
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...
6534704 Solar cell  
A solar cell includes a first semiconductor layer that is p-type, and a second semiconductor layer that is n-type formed over the first semiconductor layer. The solar cell includes a layer A made...
6515217 Solar cell having a three-dimensional array of photovoltaic cells enclosed within an enclosure having reflective surfaces  
A solar collector ( 100 ) is provide having increased efficiency and operating life, and reduced size and cost over conventional collectors. Generally, the collector ( 100 ) includes a...
6504091 Photoelectric converting device  
A photoelectric converting device is provided with enhanced photoelectric conversion efficiency by optimizing a combination of materials used for top and bottom cells. The photoelectric converting...
Matches 1 - 50 out of 263 1 2 3 4 5 6 >