Abstract: An apparatus for receiving energy is disclosed. The apparatus comprises a support base and a plurality of cells. The support base comprises an electric terminal. The plurality of cells are mounted to the support base. Further, each of the plurality of cells is electrically connected to the electric terminal disposed on the support base. In an embodiment each cell may be in the shape of a rhombus. Further, each of the plurality of cells may be oriented in a non-parallel relationship with each neighboring cell.
Abstract: It is desirable to provide a variable light condensing lens apparatus and a solar cell apparatus provided therewith in a simple configuration, yet capable of reducing dependency of light condensing efficiency on the angle of incidence of light and thereby improving power generation efficiency of the solar cell apparatus. The variable light condensing lens apparatus according to the present disclosure is provided with a translucent support having a hydrophilic photocatalyst on a surface thereof and a first translucent liquid supported on the surface of the translucent support in contact therewith and the solar cell apparatus according to the present disclosure is provided with a solar cell element, a pair of electrodes connected to the solar cell element and the variable light condensing apparatus according to the present disclosure disposed opposed to the solar cell element.
Abstract: A solar cell includes a photoactive, semiconductive absorber layer configured to generate excess charge carriers of opposed polarity by light incident on a front of the absorber layer during operation. The absorber layer is configured to separate and move, via at least one electric field formed in the absorber layer, the photogenerated excess charge carriers of opposed polarity over a minimal effective diffusion length Leff,min. The absorber layer has a thickness Lx of 0<Lx?Leff,min. First contact elements are configured to remove the excess charge carriers of a first polarity on a rear of the absorber layer. Second contact elements are configured remove the excess charge carriers of a second polarity on the rear of the absorber layer. At least one undoped, electrically insulating second passivation region is disposed in an alternating, neighboring arrangement with a first passivation region on the rear of the absorber layer.
Type:
Grant
Filed:
June 1, 2010
Date of Patent:
March 12, 2013
Assignee:
Helmholtz-Zentrum Berlin fuer Materialien und Energie GmbH
Abstract: A solar battery panel wherein cracking of solar battery cells can be reduced without reducing the power generating capacity per unit area. The solar battery panel consists of a plurality of solar battery cells (1) connected in series by connecting surface electrode tabs (104) to rear electrode tabs (105). In the solar battery panel, a tab-to-tab connecting portion (107) and a tab-to-cell connecting portion (106) are arranged via a gap (108) in the solar battery cell arrangement direction (162) without these portions overlapping each other. One end portion (107a) of the tab-to-tab connecting portion (107) exists within a region of a non-light receiving surface (3).
Abstract: Photovoltaic devices and methods of making the same, are disclosed herein. The cell comprises: a first electrically conductive layer; at least one photoelectrochemical layer comprising metal-oxide particles, an electrolyte solution, an asphaltene dye, and a second electrically conductive layer.
Type:
Grant
Filed:
July 9, 2010
Date of Patent:
March 5, 2013
Assignees:
Board of Regents, The University of Texas System, Sandia Corporation
Inventors:
Russell R. Chianelli, Karina Castillo, Vipin Gupta, Ali M. Qudah, Brenda Torres, Rajab Emhemed Abujnah
Abstract: A photovoltaic (PV) energy system includes a pulsed bus defined by a non-zero average value voltage that is proportional to a rectified utility grid AC supply voltage. The PV energy system also includes a plurality of PV modules, each PV module including a bucking circuit configured to convert a corresponding PV voltage into a pulsing current, wherein the pulsating bus is configured to sum the pulsing currents produced via the plurality of PV modules such that a resultant pulsing current is injected into the pulsating bus in phase with the non-zero average value voltage. A current unfolding circuit is configured to control the amount of AC current injected into the utility grid in response to the resultant pulsing current.
Type:
Grant
Filed:
September 19, 2008
Date of Patent:
February 19, 2013
Assignee:
General Electric Company
Inventors:
Michael Andrew de Rooij, John Stanley Glaser, Oliver Gerhard Mayer, Said Farouk Said El-Barbari
Abstract: Certain example embodiments relate to a transparent conductor film stack with cadmium stannate used as a front contact layer and/or a buffer layer in a photovoltaic device or the like. The cadmium stannate-based layers may be provided between the front glass substrate and the semiconductor absorber film in a photovoltaic device (e.g., a CdS and/or CdTe based photovoltaic device). In certain example embodiments, the buffer layer based on cadmium stannate may have a higher resistivity than the transparent conductive oxide layer based on cadmium stannate. In certain example embodiments, one or more index matching layer(s) may be provided between the glass substrate and the layer(s) comprising cadmium stannate, e.g., to help overcome the optical mismatch between the glass substrate and the CdSnOx.
Type:
Grant
Filed:
October 1, 2010
Date of Patent:
January 15, 2013
Assignee:
Guardian Industries Corp.
Inventors:
Scott V. Thomsen, Willem den Boer, Yiwei Lu
Abstract: Certain example embodiments of this invention relate to an electrode (e.g., front electrode) for use in a photovoltaic device or the like. In certain example embodiments, a transparent conductive oxide (TCO) based front electrode for use in a photovoltaic device is of or includes zinc oxide, or zinc aluminum oxide, doped with yttrium (Y). In certain example embodiments, the addition of the yttrium (Y) to the conductive zinc oxide or zinc aluminum oxide is advantageous in that potential conductivity loss of the electrode can be reduced or prevented. In other example embodiments, a low-E coating may include a layer of or including zinc oxide, or zinc aluminum oxide, doped with yttrium (Y).
Abstract: A luminescent solar concentrator comprises a primary waveguide and at least one photovoltaic cell. The primary waveguide has a curved surface which concentrates light on a perimeter. The photovoltaic cell is oriented at the perimeter so that it can both receive the concentrated light and receive direct light as well. A back sheet may be provided that provides structural support and protection. The perimeter may have the shape of a polygon where a photovoltaic cell is oriented along each edge. Modules and arrays of such units are also disclosed.
Abstract: The invention relates to a method of producing a porous semiconductor film and the film resulting from such production. It furthermore relates to an electronic device incorporating such film and to potential uses of such film.
Type:
Grant
Filed:
March 28, 2011
Date of Patent:
November 27, 2012
Assignee:
Sony Deutschland GmbH
Inventors:
Michael Duerr, Andreas Schmid, Gabriele Nelles, Akio Yasuda
Abstract: A solar energy collection device includes a solar converting station housing having a concentrator for aiding in focusing the energy onto a photovoltaic material. The photovoltaic material is applied to a series of cylindrically shaped power cells. A series of the power cells are rotationally assembled to the solar energy collection device. The power cells rotate about the cell axles, providing a cooling process for the photovoltaic material. The rotation can be provided via any number of means. The series of the power cells can be built in a removable assembly, providing a power pack for the end user.
Abstract: A solar cell including a photovoltaic layer, a first electrode layer, a second electrode layer, an insulating layer and a light-transparent conductive layer is provided. The photovoltaic layer has a first surface and a second surface. The first electrode layer having at least one gap is disposed on the first surface, wherein the at least one gap exposes a portion of the photovoltaic layer. The second electrode layer is disposed on the second surface. The insulating layer having a plurality of pores is located on the photovoltaic layer exposed by the at least one gap, wherein the holes expose a portion of the photovoltaic layer. The light-transparent conductive layer covers the insulating layer and is connected with the first electrode layer. The transparent electrode is connected with the photovoltaic layer through at least a part of the pores. A method of fabricating a solar cell is also provided.
Abstract: A photovoltaic array including a plurality of photovoltaic assemblies and a plurality of mounting units. The mounting units each include an elongate rail and a plurality of leg assemblies. The rail is sized and configured to maintain a portion of at least two of the photovoltaic assemblies, with the leg assemblies extending from the rail in a spaced-apart fashion and terminating in a foot for placement against a rooftop structure for minimally penetration installation. Further, at least one of the leg assemblies can include a retractable leg. When the photovoltaic array is installed to a rooftop structure including a membrane intermittently secured to a rooftop deck, the retractable leg accommodates upward billowing of the membrane under windy conditions.
Abstract: A solar power generation system includes a plurality of individual modules, each formed from a photovoltaic cell, a solar concentrator, a sealed evaporative cooling system and a heat sink. The solar concentrator focuses sunlight onto a front side the cell to generate electricity. The cooling system circulates a coolant in a liquid state to an evaporative cooling chamber having a wall defined at least partially by a back side of the cell to remove heat from the cell by direct contact between the coolant and the cell, and emits coolant in a vapor state to a condenser where the vapor coolant is condensed to a liquid state. The heat sink may be any suitable body of water, such that the condenser may be at least partially submerged therein. The modules are combined to form a platform that is rotated on the body of water by a drive device to provide tracking of the sun.
Type:
Grant
Filed:
June 23, 2009
Date of Patent:
October 9, 2012
Assignee:
Solaris Synergy Ltd.
Inventors:
Yuri Kokotov, Michael A. Reyz, Joseph Fisher
Abstract: A system and method for generating electrical power from a heat source utilizing both photonic and thermal conversion are disclosed. Specifically, power is generated by coupling photon converters to thermoelectric pairs in a way such that the thermoelectric pairs gain not only the charge carriers (holes and electrons) generated by the photons absorbed by the photon converters, but also the charge carriers generated by excess heat in the photon converters and an added thermal gradient generated by excess energy in the absorbed photons. Heat exchanger variations for such a system are also disclosed. Specifically, heat exchangers with and without photon emitters are disclosed and variants of refractive indices for heat exchanger systems are disclosed.
Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive silver paste for use in the front side of a solar cell device.
Type:
Grant
Filed:
October 20, 2008
Date of Patent:
July 24, 2012
Assignee:
E I Du Pont de Nemours and Company
Inventors:
Alan Frederick Carroll, Kenneth Warren Hang
Abstract: Disclosed is a photovoltaic roofing panel including at least one photovoltaic collector strip and a substrate configured to be disposed on a roof deck, the at least one photovoltaic collector strip being fixedly associated with the substrate.
Abstract: Systems and methods for disposing and supporting a solar panel array are disclosed. In one embodiment, a system for supporting a solar panel array includes the use of support columns and cables suspended between the support columns, with the solar panels received by solar panel receivers that are adapted to couple to the cables. The solar panel array may then be used to provide power as well as shelter. Cooling, lighting, security, or other devices may be added to the solar panel array. Embodiments of the invention include differing ways to support the solar panels by receivers of differing construction. Special installations of the system can include systems mounted over structure, such as parking lots, roads and aqueducts.
Abstract: A bipolar solar cell includes a backside junction formed by a silicon substrate and a first doped layer of a first dopant type on the backside of the solar cell. A second doped layer of a second dopant type makes an electrical connection to the substrate from the front side of the solar cell. A first metal contact of a first electrical polarity electrically connects to the first doped layer on the backside of the solar cell, and a second metal contact of a second electrical polarity electrically connects to the second doped layer on the front side of the solar cell. An external electrical circuit may be electrically connected to the first and second metal contacts to be powered by the solar cell.
Abstract: An automated tracking solar power collector is disclosed herein, the tracking solar powered collector includes at least one solar collector such as a solar concentrator and an actuator coupled to the at least one solar collector. The tracking solar power collector further includes a tracking controller configured to aim the at least one solar collector toward the sun with the actuator; and, a power controller configured to supply power to the actuator based on an energy collected by the at least one solar collector.