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| Number | Title | Issue Date |
| 7141834 | Method of using a germanium layer transfer to Si for photovoltaic applications and heterostructure made thereby Ge/Si and other nonsilicon film heterostructures are formed by hydrogen-induced exfoliation of the Ge film which is wafer bonded to a cheaper substrate, such as Si. A thin, single-crystal layer of Ge is transferred to Si substrate. The bond at the interface of the G... | 11/28/2006 |
| 6166320 | Tandem solar cell A solar cell that is capable of having a thickness optimum for the highest photoelectric conversion efficiency and achieves reduction of carrier recombination loss is provided. For this purpose, a solar cell (10) is formed by stacking a top cell (12) incl... | 12/26/2000 |
| 5853497 | High efficiency multi-junction solar cells A two-terminal voltage or current matched solar cell has up to four photovoltaically active junctions which efficiently convert solar radiation into electricity. The solar cell comprises GaInP, GaAs, and GaInAsP, and in the four junction case, GaInAs is u... | 12/29/1998 |
| 5676752 | Method of producing sheets of crystalline material and devices made therefrom A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 10/14/1997 |
| 5588994 | Method of producing sheets of crystalline material and devices made therefrom A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 12/31/1996 |
| 5549747 | Method of producing sheets of crystalline material and devices made therefrom A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 08/27/1996 |
| 5505789 | Line-focus photovoltaic module using solid optical secondaries for improved radiation resistance A novel low-cost solar photovoltaic module using line-focus lenses and photovoltaic receivers incorporating high-performance photovoltaic cells is described. It consists of an array of linear arched Fresnel lenses with a linear photovoltaic cell receiver ... | 04/09/1996 |
| 5479043 | Multispectral photovoltaic component Component comprising a stack of at least two associated elementary cells (1, 2) with different spectral response features, characterized in that at least one of the elementary cells is capable of being mechanically deformed. The flexibility of this cell i... | 12/26/1995 |
| 5458694 | Multispectral photovoltaic component comprising a stack of cells, and method of manufacture The method comprises the following steps: (a) producing a first cell (1) comprising a first substrate (4), a first optically active layer (5), and between said substrate and said active layer, a soluble thin layer (12); (b) producing a second cell (2) comprisi... | 10/17/1995 |
| 5389158 | Low bandgap photovoltaic cell with inherent bypass diode A photovoltaic (PV) cell with a single pn-junction is disclosed that is capable of functioning as both a current source and a bypass diode. The photovoltaic cell is made of material that has a low bandgap energy, 1.0 eV, or less. One version of the PV cel... | 02/14/1995 |
| 5362682 | Method of producing sheets of crystalline material and devices made therefrom A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 11/08/1994 |
| 5344497 | Line-focus photovoltaic module using stacked tandem-cells A novel low-cost solar photovoltaic module using line-focus lenses and photovoltaic receivers incorporating high-performance tandem cell-stacks is described. It consists of an array of linear arched Fresnel lenses with a linear tandem-cell receiver locate... | 09/06/1994 |
| 5328549 | Method of producing sheets of crystalline material and devices made therefrom A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 07/12/1994 |
| 5322572 | Monolithic tandem solar cell A single-crystal, monolithic, tandem, photovoltaic solar cell is described which includes (a) an InP substrate having upper and lower surfaces, (b) a first photoactive subcell on the upper surface of the InP substrate, (c) a second photoactive subcell on ... | 06/21/1994 |
| 5248346 | Photovoltaic cell and array with inherent bypass diode A photovoltaic cell (20) with a single pn-junction (46) is disclosed that is capable of functioning as both a current source and a bypass diode. The photovoltaic cell is made of material that has a low bandgap energy, 1.0 eV, or less. One version of the p... | 09/28/1993 |
| 5123968 | Tandem photovoltaic solar cell with III-V diffused junction booster cell A photovoltaic cell array involving rows and columns of tandem or stacked solar cell units composed of GaSa/GaSb associated with a radiation collector have produced measured energy conversion efficiencies of 31% AMO. The booster GaSb cell is manufactured ... | 06/23/1992 |
| 5118361 | Terrestrial concentrator solar cell module Solar cells, particularly GaAs/GaSb tandem solar cells, are mechanically and electrically connected in the form of a string using a flexible circuit tape and mounted in optical alignment with solar energy concentrators in a module. A heat spreader body is... | 06/02/1992 |
| 5091018 | Tandem photovoltaic solar cell with III-V diffused junction booster cell A photovoltaic cell array involving rows and columns of tandem or stacked solar cell units composed of GaSa/GaSb associated with a radiation collector have produced measured energy conversion efficiencies of 31% AMO. The booster GaSb cell is manufactured ... | 02/25/1992 |
| 5071490 | Tandem stacked amorphous solar cell device An amorphous solar cell is provided having a junction structure of a p layer, an i layer and n layer where an electromotive force is generated when the cell is irradiated by light. The amorphous solar cell includes an upper cell and a lower cell which eac... | 12/10/1991 |
| 5021099 | Solar cell interconnection and packaging using tape carrier Individual solar cells are electrically interconnected through an interconnect circuit supported on a flexible dielectric substrate. The solar cells are connected directly to the interconnect circuit by contact fingers that are an integral part of the int... | 06/04/1991 |
| 5009243 | Solar harness The present invention is directed to a solar harness apparatus which includes a plurality of solar cells with each having an active surface, that is, a surface which absorbs photons to generate electrical power, and these are arranged in a substantially p... | 04/23/1991 |
| 4954182 | Multiple cell photoresponsive amorphous photo voltaic devices including graded band gaps The production of improved multiple cell photovoltaic amorphous silicon devices having improved wavelength threshold characteristics is made possible by adding one or more band gap adjusting elements to the silicon alloy material in one or more cells of t... | 09/04/1990 |
| 4948740 | Method for the integrated series-interconnection of thick-film solar cells and method for the manufacture of tandem solar cells A method is provided for the series-interconnection of a plurality of thick-film solar cells. Separating grooves in the thick-film semiconductor layer necessary for forming conductive connections between the cells are produced through a lift-off technique... | 08/14/1990 |
| 4935383 | Preparation of dilute magnetic semiconductor films by metalorganic chemical vapor deposition A method for preparation of a dilute magnetic semiconductor (DMS) film is provided, wherein a Group II metal source, a Group VI metal source and a transition metal magnetic ion source are pyrolyzed in the reactor of a metalorganic chemical vapor depositio... | 06/19/1990 |
| 4914044 | Method of making tandem solar cell module A tandem solar module and a method for the manufacture thereof. The tandem solar module has a first, large-area, lower solar sub-module of polycrystalline silicon (c-Si), has an electrically insulating, transparent intermediate layer functioning as an opt... | 04/03/1990 |
| 4909863 | Process for levelling film surfaces and products thereof Semiconductor films and photovoltaic devices prepared therefrom are provided wherein the semiconductor films have a specular surface with a texture less than about 0.25 micron greater than the average planar film surface and wherein the semiconductor film... | 03/20/1990 |
| 4891074 | Multiple cell photoresponsive amorphous alloys and devices The production of improved multiple cell photoresponsive amorphous devices, such as photovoltaic, photoreceptive devices and the like; having improved wavelength threshold characteristics is made possible by adding one or more band gap adjusting elements ... | 01/02/1990 |
| 4847669 | Tandem photoelectric conversion device An improved tandem photoelectric conversion device is shown. The device comprises at least two photoelectric conversion semiconductor assemblies. The assembly located behind the other has higher crystallinity then the other, so that light with a long wave... | 07/11/1989 |
| 4816420 | Method of producing tandem solar cell devices from sheets of crystalline material A method of producing sheets of crystalline material is disclosed which is employed in the construction of tandem solar cells. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of substrate exposed through ... | 03/28/1989 |
| 4776893 | GaAs on GaSb mechanically stacked photovoltaic cells, package assembly, and modules The present invention is an apparatus of mechanically stacked photovoltaic cells having two cells. The bottom cell has a layer of GaSb having regions of different conductivity forming a homojunction therein. The GaSb layer is sandwiched between a conducti... | 10/11/1988 |
| 4776895 | Multiband emitter matched to multilayer photovoltaic collector A thermophotovoltaic electric generating system provides high thermal to electric conversion efficiency by use of matched radiation emitter and radiation collector. The radiation emitter comprises ceramic materials which emit thermally stimulated quantum ... | 10/11/1988 |
| 4746371 | Mechanically stacked photovoltaic cells, package assembly, and modules The present invention is an apparatus of mechanically stacked photovoltaic cells having a bottom heat spreader and a top heat spreader, a bottom photovoltaic cell and a top photovoltaic cell, and means for forming the necessary electrical contacts. The he... | 05/24/1988 |
| 4727047 | Method of producing sheets of crystalline material A method of producing sheets of crystalline material is disclosed, as well as devices employing such sheets. In the method, a growth mask is formed upon a substrate and crystalline material is grown at areas of the substrate exposed through the mask and l... | 02/23/1988 |
| 4703131 | CdS/CuInSe2 solar cells with titanium foil substrate Increased specific powers are achieved for space solar cells by using 2-5 mil titanium foil as the substrate of a cell. Specific powers above the NASA goal of 300 watts/kg for (Cd,Zn)S/CuInSe2 solar cells have been measured, and specific powers... | 10/27/1987 |
| 4658086 | Photovoltaic cell package assembly for mechanically stacked photovoltaic cells A mechanically stacked module package is described. The package permits the effective mechanical stacking of two solar cells in a compact arrangement. The design also permits the easy wiring of the package into a voltage matching configuration for module ... | 04/14/1987 |
| 4638111 | Thin film solar cell module A solar cell module contains a thin film silicon (TFS) semiconductor panel positioned above a copper indium dieselenide (CIS) semiconductor panel. The combination of the TFS panel and the CIS panel is effective to utilize a substantial proportion of the l... | 01/20/1987 |
| 4461922 | Solar cell module Individual panels of solar cells are stacked one on top of the other and arranged so that incident light passes through each of the arrays of cells in each panel striking the one below it. The solar cells in each panel are selected to have a predetermined... | 07/24/1984 |
| 4400868 | Method of making a transparent and electrically conductive bond Solar cells with different bandgaps are stacked to form a multijunction photovoltaic converter with a high conversion efficiency. By stacking the cells mechanically rather than by growing them all at one time, the most convenient combination of materials ... | 08/30/1983 |
| 4356341 | Cascade solar cell having conductive interconnects Direct ohmic contact between the cells in an epitaxially grown cascade solar cell is obtained by means of conductive interconnects formed through grooves etched intermittently in the upper cell. The base of the upper cell is directly connected by the cond... | 10/26/1982 |
| 4348545 | Process for mounting a protection diode on a vertical multijunction photovoltaic cell structure and photovoltaic cells obtained In a stack of diodes forming a vertical multijunction photovoltaic cell, an inversely connected diode is firmly secured to this stack with possible insertion of a intermediate wafer made from a conducting material.... | 09/07/1982 |
