摘要:
In order to produce silicon wafers, liquid ultra-pure silicon is solidified on a silicon monocrystalline seed arranged in the bottom area of a crucible and having a seed surface comprising a {110}-crystal orientation and an edge surface having a {100}-crystal orientation starting from the bottom of the crucible, thus forming a silicon block on the seed surface of the silicon monocrystalline seed which largely takes over the {110}-crystal orientation. Subsequently, the silicon block is divided into wafers with a wafer surface having a {100}-crystal orientation.
摘要:
Method for producing a silicon ingot, comprising the following steps: providing a container to receive a silicon melt, providing a temperature control device to control the temperature of the silicon melt in the container, arranging raw material in the container comprising silicon and at least one nucleation agent to assist a heterogeneous nucleation in the silicon melt, and control of the temperature in the container for the directed solidification of the silicon melt, the nucleation agent comprising nanoscale particles.
摘要:
Method for producing a silicon ingot, comprising the following steps: providing a container to receive a silicon melt, providing a temperature control device to control the temperature of the silicon melt in the container, arranging raw material in the container comprising silicon and at least one nucleation agent to assist a heterogeneous nucleation in the silicon melt, and control of the temperature in the container for the directed solidification of the silicon melt , the nucleation agent comprising nanoscale particles.
摘要:
Method for producing a silicon ingot comprising the following steps: providing a container to receive a silicon melt, providing a temperature control device to control the temperature of the silicon melt in the container, arranging raw material in the container comprising silicon and at least one hydrogen-containing additive to reduce the formation of dislocations, and control of the temperature in the container (3) for the directed solidification of the silicon melt.
摘要:
Device for producing silicon blocks for photovoltaic applications, comprising a container for receiving a silicon melt with a base wall and at least one side wall, means for reducing the diffusion of impurities from at least one of the walls of the container into the silicon melt, wherein the means for reducing the diffusion of impurities comprise at least one covering element for the at least partial covering of at least one of the walls of the container.
摘要:
In various embodiments, a method for fitting contact wires to a surface of a photovoltaic cell is provided. The method may include: feeding the contact wires to a contact wire positioning and placement device, wherein the contact wire positioning and placement device comprises a plurality of nozzles or eyes, wherein at least one contact wire is in each case passed through a respective nozzle or eye, for positioning and placement thereof onto the surface of the photovoltaic cell; positioning and placing the contact wires on the surface of the photovoltaic cell by means of the contact wire positioning and placement device; and attaching the contact wires to the surface of the photovoltaic cell.
摘要:
A method for the production of a contact structure of a semiconductor component comprises the masking of at least one side of a semiconductor substrate with a coating and the partial removal thereof in at least one pre-determined region.
摘要:
A fuel injector, in particular for direct injection of fuel into a combustion chamber of an internal combustion engine, has a valve needle, which is situated in a nozzle body and is operable by an actuator, and a valve closing body, which is operatively connected to the valve needle and, for opening and closing the valve, cooperates with a valve seat face formed on a valve seat body, the valve seat body being provided with at least one spray hole. The at least one spray hole has a first cylindrical section having a fuel inlet opening and a second cylindrical section situated downstream from the first cylindrical section and having a fuel outlet opening, the first and the second cylindrical sections not running coaxially to one another.
摘要:
In various embodiments, a solar cell is provided. The solar cell may include a base region doped with dopant of a first doping type; an emitter region doped with dopant of a second doping type, wherein the second doping type is opposite to the first doping type; a plurality of regions in the emitter region having an increased dopant concentration of the second doping type compared with the emitter region; and a plurality of metallic soldering pads, wherein each soldering pad is at least partially arranged on a region having an increased dopant concentration.
摘要:
In various embodiments, a method for fitting contact wires to a surface of a photovoltaic cell is provided. The method may include: feeding the contact wires to a contact wire positioning and placement device, wherein the contact wire positioning and placement device comprises a plurality of nozzles or eyes, wherein at least one contact wire is in each case passed through a respective nozzle or eye, for positioning and placement thereof onto the surface of the photovoltaic cell; positioning and placing the contact wires on the surface of the photovoltaic cell by means of the contact wire positioning and placement device; and attaching the contact wires to the surface of the photovoltaic cell.