摘要:
Solar modules are provided that include a front pane, an inter layer into which solar cells are embedded, and at least one back side foil, which increases the life span of the solar modules. The at least one back side foil is provided with holes having a density of at most 0.2 cm−2.
摘要:
The construction principles according to the present invention make possible large sheet-like solar modules with low weight, which have great mechanical toughness, are inured to rough climatic environment influences and withstand thermal stress due to solar irradiation and shadowing effects. The solar modules have front and back panes, one of which has a thickness of at least 3 mm and the other of which has a thickness of at most 2 mm. The coefficient of thermal expansion of the thicker pane is preferably greater than that of the thinner pane. In preferred embodiments burling or a wavy structure is provided on one side of the front pane and/or the back pane.
摘要:
The construction principles according to the present invention make possible large sheet-like solar modules with low weight, which have great mechanical toughness, are inured to rough climatic environment influences and withstand thermal stress due to solar irradiation and shadowing effects. The solar modules have front and back panes, one of which has a thickness of at least 3 mm and the other of which has a thickness of at most 2 mm. The coefficient of thermal expansion of the thicker pane is preferably greater than that of the thinner pane. In preferred embodiments burling or a wavy structure is provided on one side of the front pane and/or the back pane.
摘要:
The improved photovoltaic module contains a solar cell made of metallic silicon, which is embedded in at least one embedding material, and a corrosion inhibitor. Preferably the corrosion inhibitor is an organic compound, which has at least one nitrogen atom. As a result, the photovoltaic module according to the present invention has an extended service life, since it withstands corrosive influences.
摘要:
The solar module for converting radiation energy, in particular sunlight, into electrical energy, includes a solar cell (12) that converts radiation energy into electrical energy, an electrical conductor (24) to conduct the electrical energy, an encapsulation (14) encasing the solar cell (12) to protect the solar cell (12), which includes one or more panes (16) of glass to protect and stabilize the solar cell (12) and a layer (22) of embedment material into which the solar cell (12) is laminated or cast, and a body (26) fused into the pane (16) of glass to conduct the electrical energy or to pass an electrical conductor (24) through the pane of glass (16). Furthermore, a method for fusing the body (26) into the one or more panes (16) of glass of the solar module is also described.
摘要:
The device for production of a monocrystalline or a multicrystalline material blank, especially a silicon multicrystalline blank, using the VGF method has a crucible with a rectangular or square cross section. A flat heating device, especially a jacket heater, which generates an inhomogeneous temperature profile, is arranged around the crucible. This temperature profile corresponds to the temperature gradient formed in the center of the crucible. The heat output of the flat heating device decreases from the top to the bottom end of the crucible. The flat heating device includes parallel heating webs, which extend in a meandering course. The heat outputs from the heating webs differ according to their different conductor cross sections. To avoid local overheating in corner areas of the crucible, constrictions of the cross sections of the heating webs are provided at inversion zones of their meandering course.
摘要:
Highly pure silicon is produced by refining impure silicon to remove deleterious impurities by contacting a melt of the impure silicon with a reacitve gas which comprises a gaseous halogen compound mixed with steam, hydrogen or a stem/hydrogen mixture.
摘要:
Method for constructing a line or dotted structure on a support, especially for constructing strip-like electrically conducting contacts on a semiconductor component such as a solar cell, by applying an electrically conducting paste-like substance containing a solvent adhering to a support and subsequent hardening of the substance. After the substance is applied to the support, a medium containing a polar molecule is applied on the support and/or the substance, through which the solvent contained in the substance is extracted.
摘要:
The method of producing monocrystalline or multicrystalline blanks, especially silicon blanks, by using a vertical-gradient-freeze method, includes providing a crucible with a rectangular or square-shaped cross section and a heating jacket disposed around the crucible, which has a number of flat heating elements with a meandering course disposed on side faces of the crucible. The heating jacket generates an inhomogeneous temperature profile corresponding to a temperature gradient in the center of the crucible. The flat heating elements preferably comprise parallel heating webs, whose heat output is set by varying the conductor cross section. To avoid local overheating in corner areas of the crucible, constrictions of the cross section are provided at inversion zones of the meandering courses of the webs. The flat heating elements can be formed from a plurality of interconnected individual segments.
摘要:
The invention relates to a device and a method for the production of monocrystalline or multicrystalline materials using the vertical-gradient-freeze method, in particular silicon for applications in photovoltaics. According to the invention a low amount of wastage is achieved in that the cross section of the crucible is polygonal, in particular rectangular or square-shaped. Disposed around the circumference of the crucible there is a flat or planar heating element, in particular a jacket heater, which generates an inhomogeneous temperature profile. This corresponds to the temperature gradient formed in the centre of the crucible. The heat output of the flat heating element decreases going from the top end to the bottom end of the crucible. The flat heating element comprises a plurality of parallel heating webs, extending in a vertical or horizontal meandering course. The heat output from the webs is set by varying the conductor cross section. To avoid local overheating in corner areas of the crucible, constrictions of the cross section are provided at inversion zones of the meandering courses of the webs. The flat heating element can be formed from a plurality of interconnected individual segments.