Patent application number | Description | Published |
20110030773 | PHOTOVOLTAIC CELL WITH BACK-SURFACE REFLECTIVITY SCATTERING - Crystal oriented photovoltaic cells with increased efficiency are disclosed herein. In an exemplary embodiment, a photovoltaic device includes a metal substrate with a crystalline orientation comprising a diffracting structure integrated into a surface of the metal substrate. The photovoltaic device includes a heteroepitaxial crystal silicon layer having the crystalline orientation of the metal substrate and a heteroepitaxially grown buffer layer having the crystalline orientation. The buffer layer is positioned adjacent to the surface of the metal substrate having the diffracting structure. | 02-10-2011 |
20110308615 | CRYSTAL SILICON PROCESSES AND PRODUCTS - Crystal silicon processes and products ( | 12-22-2011 |
20130168684 | BACK CONTACT TO FILM SILICON ON METAL FOR PHOTOVOLTAIC CELLS - A crystal oriented metal back contact for solar cells is disclosed herein. In one embodiment, a photovoltaic device and methods for making the photovoltaic device are disclosed. The photovoltaic device includes a metal substrate with a crystalline orientation and a heteroepitaxial crystal silicon layer having the same crystal orientation of the metal substrate. A heteroepitaxial buffer layer having the crystal orientation of the metal substrate is positioned between the substrate and the crystal silicon layer to reduce diffusion of metal from the metal foil into the crystal silicon layer and provide chemical compatibility with the heteroepitaxial crystal silicon layer. Additionally, the buffer layer includes one or more electrically conductive pathways to electrically couple the crystal silicon layer and the metal substrate. | 07-04-2013 |
20130340824 | Efficient Black Silicon Photovoltaic Devices With Enhanced Blue Response - A photovoltaic (PV) device with improved blue response. The PV device includes a silicon substrate with an emitter layer on a light receiving side. The emitter layer has a low opant level such that it has sheet resistance of 90 to 170 ohm/sq. Anti-reflection in the PV device is provided solely by a nano-structured or black silicon surface on the light-receiving surface, through which the emitter is formed by diffusion. The nano structures of the black silicon are formed in a manner that does not result in gold or another high-recombination metal being left in the black silicon such as with metal-assisted etching using silver. The black silicon is further processed to widen these pores so as to provide larger nanostructures with lateral dimensions in the range of 65 to 150 nanometers so as to reduce surface area and also to etch away a highly doped portion of the emitter. | 12-26-2013 |
20140141563 | BACK CONTACT TO FILM SILICON ON METAL FOR PHOTOVOLTAIC CELLS - Systems and Methods for back contact to film silicon on metal for photovoltaic cells are provided. In one embodiment, a method for creating a conductive pathway in a photovoltaic cell comprises: obtaining a layered photovoltaic device comprising: a metal substrate with a crystal orientation; a crystal semiconductor layer with the crystal orientation; and a heteroepitaxially grown buffer layer positioned between the substrate and the crystal semiconductor layer; and forming one or more conductive pathways between the crystal semiconductor layer and the metal substrate, the pathways being through at least a portion of the buffer layer. | 05-22-2014 |
Patent application number | Description | Published |
20080319610 | Method and Device for Avoiding and/or Reducing the Consequences of Collisions Upon Evasion with Respect to Obstacles - A method and a device for assisting a driver of a vehicle to avoid collisions with obstacles are provided, in which method at least one obstacle is detected by way of at least one surroundings sensor, and data of the obstacle are ascertained. On the basis of the data of the obstacle and data of the vehicle, a vehicle deceleration that is favorable for assistance of an evasive operation is ascertained, and the vehicle is correspondingly decelerated. | 12-25-2008 |
20110106361 | Method for the calculation of a collision-preventing trajectory for a driving maneuver of a vehicle - A method for calculating a collision-avoiding trajectory for a driving maneuver of a vehicle, in particular a motor vehicle, in order to evade at least one obstacle approaching the motor vehicle during driving operation. The lateral speed of the motor vehicle is taken into account in the calculation independently of the longitudinal speed of the motor vehicle. | 05-05-2011 |
20120316723 | method for determining at least one trafficable area in the surroundings of a motor vehicle - In a method for determining at least one trafficable area in the surroundings of a motor vehicle relevant for vehicle guidance, e.g., for ascertaining an evasion trajectory for a driver assistance system of the motor vehicle, at least one object detection sensor of the vehicle detects objects or obstacles in the surroundings of the motor vehicle, and the chronological sequence of occupancy information of the at least one object detection sensor of the motor vehicle regarding at least one detected object is taken into consideration. | 12-13-2012 |