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| Number | Title | Issue Date |
| 4178395 | Methods for improving solar cell open circuit voltage A method for producing a solar cell having an increased open circuit voltage. A layer of cadmium sulfide (CdS) produced by a chemical spray technique and having residual chlorides is exposed to a flow of hydrogen sulfide (H2 S) heated to a temp... | 12/11/1979 |
| 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 |
| 4167805 | Cuprous sulfide layer formation for photovoltaic cell An improved method for fabrication of a photovoltaic cell preferably of the CdS--Cux S type, having a copper electrode adjacent the Cux S. A portion of the CdS is converted to Cux S through ion exchange wherein the CdS is ... | 09/18/1979 |
| 4159914 | Photovoltaic cell A photovoltaic cell having an electrically conductive substrate, which may be glass having a film of conductive tin oxide; a first layer containing a suitable semiconductor, which layer has a first component film with an amorphous structure and a second c... | 07/03/1979 |
| 4143235 | Cadmium sulfide photovoltaic cell and method of fabrication A cadmium sulfide photovoltaic cell of improved efficiency comprising a barrier layer and cadmium sulfide-containing bilayer, the bilayer being formed by depositing at a first temperature an initial layer of cadmium sulfide in interfacial contact with the... | 03/06/1979 |
| 4127424 | Photovoltaic cell array In a photovoltaic cell which comprises: a substrate, a bottom electrode, a first layer of cadmium sulfide, a second layer of cuprous sulfide forming a barrier junction with said first layer and a top electrode, the improvement wherein said substrate is an... | 11/28/1978 |
| 4120705 | Vacuum deposition process for fabricating a CdS--Cu2 S heterojunction solar cell device A solar cell is comprised of (1) a Cu2 S thin film evaporated on a conductive substrate at an elevated temperature thereby growing a polycrystalline film of preferred orientation, and (2) an outer CdS layer grown epitaxially on the Cu2 | 10/17/1978 |
| 4113531 | Process for fabricating polycrystalline InP-CdS solar cells The specification describes a compound semiconductor solar cell and fabrication process therefor wherein both the P and N-type layers of the cell are polycrystalline semiconducting material and have large crystallites with grain boundaries of similar dime... | 09/12/1978 |
| 4104420 | Photovoltaic cell A large area photovoltaic cell comprising a layer of multicrystalline cadmium sulfide, about 1 to 2 microns thick, formed by simultaneously spraying two suitably selected compounds on a uniformly heated plate of Nesa glass, thereafter forming a coating of... | 08/01/1978 |
| 4101341 | CdSe-SnSe photovoltaic cell The invention relates to a photovoltaic cell for converting solar energy into electrical power and which has, in sandwich construction, two different polycrystalline, semiconductor layers in intimate contact and disposed on a metal or metal-coated substra... | 07/18/1978 |
| 4095006 | Cadmium sulfide film A method of forming a cadmium sulfide film from a solution containing a cadmium salt and a sulfur containing compound comprising inclusion of a chlorine containing compound in the solution utilized to form the cadmium sulfide film.... | 06/13/1978 |
| 4086101 | Photovoltaic cells A method of making low cost photovoltaic cells on a large scale basis by means of a continuous process of coating sheet glass while the sheet glass moves in and has its under surface immersed in a tank of molten material, comprising forming the film of Cd... | 04/25/1978 |
| 4081290 | Solar cells and photovoltaic devices of InP/CdS Heterodiodes showing excellent potential for use in solar cells and photoelectric devices consist of junctions of p-type indium phosphide and n-type cadmium sulfide. These heterojunctions can be formed either from single crystal or from polycrystalline se... | 03/28/1978 |
| 4064522 | High efficiency selenium heterojunction solar cells A photocell includes a metallic base electrode, a continuous, crystalline P-type semiconductive selenium layer less than about 50 microns thick, a thin tellurium layer interposed therebetween to metallurgically bond the base electrode to the selenium laye... | 12/20/1977 |
| 4048372 | Coating of cadmium stannate films onto plastic substrates Light transmissive, electrically conductive cadmium stannate films on plastic substrates are greatly improved with respect to their adherence to the substrate if the film is deposited on a substrate which has been precoated with a metal oxide, such as sil... | 09/13/1977 |
| 4039357 | Etching of III-V semiconductor materials with H2 S in the preparation of heterodiodes to facilitate the deposition of cadmium sulfide A hydrogen transport process for cleaning the surface of an indium or gallium based semiconductor material and for depositing n-type cadmium sulfide on the cleaned semiconductor material is disclosed. The cleaning and deposition can be accomplished in seq... | 08/02/1977 |
| 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 |
| 4035197 | Barrier type photovoltaic cells with enhanced open-circuit voltage, and process of manufacture A cadmium telluride photovoltaic cell is produced with increased conversion efficiency arising from enhanced open-circuit voltage. Such voltage is achieved by altering the surface of the crystalline cadmium telluride that contacts the barrier metal by hea... | 07/12/1977 |
| 3993533 | Method for making semiconductors for solar cells The invention relates to a method for producing a desired thin semiconductor film for use in solar cells. The desired semiconductor is grown epitaxially on a second semiconductor film which may be epitaxial on a third semiconductor. The second semiconduct... | 11/23/1976 |
| 3990914 | Tubular solar cell High efficiency, low cost solar energy conversion is facilitated by using tubular photovoltaic solar cells situated at the focus of a line-generated paraboloidal reflector. Advantageously, each solar cell comprises a pair of concentric glass tubes that ar... | 11/09/1976 |
| 3988172 | Annealing solar cells of InP/CdS Solar cells showing improved efficiency, amounting to about 14 percent for overall solar power conversion, are obtained by annealing InP/CdS solar cells in a slightly reducing atmosphere for about 15 minutes in a temperature range preferably from about 55... | 10/26/1976 |
| 3982260 | Light sensitive electronic devices The invention provides light sensitive electronic devices wherein cadmium telluride films are supported on iron substrates.... | 09/21/1976 |
| 3978510 | Heterojunction photovoltaic devices employing I-III-VI compounds Photovoltaic devices are constructed from a principal body of copper indium selenide (CuInSe2) upon which is deposited a hetero-epitaxial layer of a high bandgap semiconductor, such as an n-type layer of cadmium sulfide (CdS). When made with a ... | 08/31/1976 |
| 3975211 | Solar cells and method for making same Solar cell elements are produced in accordance with the present invention in which a Cu2 S thin film is epitaxially formed on a CdS film by vacuum deposition in a heterojunction forming relationship. By a first method a Cu2 S layer o... | 08/17/1976 |
| 3971672 | Light diffuser for photovoltaic cell A photovoltaic system in which strips of active photovoltaic cells are coated on one side of a sheet of glass, the glass being illuminated by the sun from the other side of the sheet and the strips being separated by inactive areas devoted to electrodes, ... | 07/27/1976 |
