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...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4854975 | Solar cell with integrated interconnect device and process for fabrication thereof A solar cell assembly wherein a solar cell is provided with electrical layer contacts for both the p-type semiconductor layer and the n-type semiconductor layer which are exposed on a top side of the solar cell, so that electrical contact to both layers c... | 08/08/1989 |
| 4681983 | Semiconductor solar cells A photovoltaic solar cell comprises a piece of semiconductor material incorporating a p-type region, an n-type region, a p-n junction between the two, electrodes contacting the two regions, and within its body a lattice defect denuded zone and a lattice d... | 07/21/1987 |
| 4649227 | Photoactive pyrite layer and process for making and using same Photoactive pyrite layers, whose preparation and use represent a commercially highly interesting alternative to materials hitherto in common use. The semiconductor material chiefly used until now, e.g. for solar cells, is silicon. However, its costs of ma... | 03/10/1987 |
| 4644638 | Photovoltaic device prepared by electroless deposition A heterojunction photovoltaic device, containing a highly conductive coating material having a band gap greater than 0 to about 3.0 e.V. on a substrate containing a semiconductor material, is utilized in highly efficient photovoltaic cells and radiometric... | 02/24/1987 |
| 4608750 | Preparation of photovoltaic device by electrochemical deposition A heterojunction photovoltaic device, containing a highly conductive coating material having a band gap greater than 0 to about 3.0 e.V. on a substrate containing a semiconductor material, is utilized in highly efficient photovoltaic cells and radiometric... | 09/02/1986 |
| 4591654 | Solar cells based on indium phosphide An InP solar cell having a p-type InP single crystal substrate having a carrier concentration of 2×1016 -2×1018 cm-3, an n-type InP layer containing a dopant of at least one element selected from VIA group including S an... | 05/27/1986 |
| 4571447 | Photovoltaic cell of semi-conducting diamond A diamond or diamond-like material containing a p-type semi-conducting layer, an n-type semi-conducting layer and a p-n junction for use as a photovoltaic cell, particularly a solar cell. The material may be included in a suitable unit for generating elec... | 02/18/1986 |
| 4535195 | Photoelectromotive force element A photoelectromotive force element capable of being manufactured at a low cost and exhibiting an excellent photoelectric conversion efficiency. The element comprises one conductivity type semiconductor substrate and the other conductivity type iron oxide ... | 08/13/1985 |
| 4508931 | Catenated phosphorus materials, their preparation and use, and semiconductor and other devices employing them High phosphorus polyphosphides, namely MPx, where M is an alkali metal (Li, Na, K, Rb, and Cs) or metals mimicking the bonding behavior of an alkali metal, and where x=7 to 15 or very much greater than 15 (new forms of phosphorus) are useful se... | 04/02/1985 |
| 4503089 | Method for producing semiconductor devices A composite article, and method for producing the same, said article being adapted for use as a semiconductor device. The composite article comprises and is produced by depositing on a first layer of metal having an irregular metal surface a second layer ... | 03/05/1985 |
| 4366334 | Photovoltaic cell usable as a solar cell The invention relates to a low cost photovoltaic cell, using a minimum thickness layer of semiconductor compounds able to provide the photovoltaic effect and specifically in polycrystalline form. On a molybdenum sheet an auxiliary polycrystalline germaniu... | 12/28/1982 |
| 4366336 | Age and heat stabilized photovoltaic cells Improved age and heat stabilized photovoltaic solar cells comprising a semiconducting layer, a barrier layer containing the metal M1 and a stabilizing metal electrode containing two or more metals, one of which is M1, such that the t... | 12/28/1982 |
| 4345967 | Method of producing thin single-crystal sheets A method of producing thin single-crystal sheets is disclosed. A thin single-crystal layer is formed on a substrate, with the material of the layer having a different absorption coefficient for laser radiation than does the material of the substrate at th... | 08/24/1982 |
| 4320249 | Heterojunction type semiconductor photoelectric conversion device A heterojunction type semiconductor photoelectric conversion device which comprises a semiconductor layer, a light-transparent, conductive layer disposed on the semiconductor layer to form therebetween a heterojunction, and a conductive layer disposed on ... | 03/16/1982 |
| 4291323 | Indium phosphide arsenide based devices Devices based on InAs1-x Px where 0.85ࣘx | 09/22/1981 |
| 4277293 | Growth of synthetic diamonds having altered electrical conductivity A method of growing a diamond crystal which comprises bombarding the diamond with a flux of carbon ions of sufficient energy to penetrate the diamond crystal and cause crystal growth which is at least predominantly internal, the temperature of the crystal... | 07/07/1981 |
| 4251679 | Electromagnetic radiation transducer Electromagnetic radiation is converted to usable power in the form of electrical current by means of a plurality of transducing cavities having a wall structure that is inclined inwardly to receive impinging radiation and includes potential barrier strips... | 02/17/1981 |
| 4231053 | High electrical frequency infrared detector A thin-film single-crystal infrared detector exhibiting an increased freqcy of response. A closed transverse junction, formed by diffusing a central electrode of an impurity rich metal into a lead-salt film epitaxially grown on an insulating substrate, p... | 10/28/1980 |
| 4202004 | Energy conversion unit A crystal of a semiconductor material has an electrically conducting loom assembly embedded therein, whereby the crystal and loom assembly define a unit which converts light or other electromagnetic radiation into an electrical current for flow to an exte... | 05/06/1980 |
| 4176370 | Photovoltaic converter A photovoltaic converter, useful for example as a photodetector or solar cell, comprising a main unit consisting of a p-n heterojunction of a p- or n-type magnetic semiconductor MCr2 X4 in which M is Zn, Cd or Hg and X is O, S, Se or... | 11/27/1979 |
| 4160678 | Heterojunction solar cell An improved efficiency heterojunction solar cell comprises a narrow-gap collector (or base) region and a wide-gap window region. The latter includes an inner and an outer region of the same conductivity type but of different impurity concentrations. The h... | 07/10/1979 |
| 4137096 | Low cost system for developing solar cells Low cost solar cells are made by electrodeposition of a metallic coating on a conductive substrate, followed by cathodic conversion of the coating in a thiosulfate containing bath to form metallic sulfides. Electrical contacts are made to portions of the ... | 01/30/1979 |
| 4121238 | Metal oxide/indium phosphide devices Devices using a transparent conductive layer of indium oxide or indium tin oxide, and a layer of a direct gap semiconductor material have been found to operate as solar cells and as light emitting devices. Exemplary of such devices is an indium tin oxide/... | 10/17/1978 |
| 4044372 | Photovoltaic cell having controllable spectral response The spectral response of a photovoltaic cell is controlled by modifying the minority carrier transport characteristics of the cell semiconductor body. Recombination centers are provided in the body that reduce the lifetime or diffusion distance of minorit... | 08/23/1977 |
| 4036645 | Photodetectors and thin film photovoltaic arrays A photo-voltaic hetero-junction is formed by chemical conversion of surface regions of a sheet of one conductivity type into material of a second conductivity type, the areas which are not to be converted being covered by a developed photo-resist layer wh... | 07/19/1977 |
| 4016586 | Photovoltaic heterojunction device employing a wide bandgap material as an active layer A semiconductive heterojunction device particularly useful as a photovoltaic device such as a solar cell comprises a heterojunction formed between a first layer of semiconductor material exhibiting one type of electronic conductivity (N or P) and a second... | 04/05/1977 |
