Patent
Heterojunction V-groove multijunction solar cell
TLDR
In this paper, a solar cell is disclosed with V-groove which are series connected, but electrically isolated, indirect bandgap solar cells which are responsive to different light frequencies on both sides of a semi-insulating optically transparent substrate.Abstract:
A solar cell is disclosed with V-grooves which are series connected, but electrically isolated, indirect bandgap solar cells which are responsive to different light frequencies on both sides of a semi-insulating optically transparent substrate. The device has a very high conversion efficiency of approximately 40% and high open-circuit voltage and low series resistance. An exemplary structure in accordance with this disclosure has a series of silicon V-groove cells on one side and another series of GaAlAs V-groove cells on the other side. The cells are of generally trapezoidal cross-section. The difference between the characteristics of the Si cell and the GaAlAs cell is matched by control of the number of V-grooves.read more
Citations
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Patent
Solar cell module
V. K. Kapur,James H. Wilson +1 more
TL;DR: In this paper, individual panels of solar cells are stacked one on top of the other and arranged so that incident light passes through each of the arrays of cells in each panel striking the one below it.
Patent
Solar collector having an array of photovoltaic cells oriented to receive reflected light
TL;DR: In this article, a solar collector is provided having increased efficiency and reduced cost over conventional collectors, which includes an array ( 218 ) of substrates ( 202 A, 220 B) each having a substantially planar surface with a photovoltaic cell ( 208 ) formed thereon.
Patent
Multi-layer thin-film, flexible silicon alloy photovoltaic cell
TL;DR: In this article, a flexible photovoltaic cell includes thin front and rear junction regions electrically in series each formed of ceramic metallic glass semi-conductor alloys of silicon of approximately zero thermal expansion/contraction coefficient laminated with an intervening semi-conducting layer less than 60 Angstroms thick or an insulating layer more than 20 Angstrom's thick.
Patent
Radiation-emitting semiconductor component
Norwin Von Malm,Ralph Wirth +1 more
Abstract: Disclosed is a radiation-emitting semiconductor component comprising a layered structure (12) which is provided with a photon-emitting active layer (16), an n-doped cladding layer (14), and a p-doped cladding layer (18), a contact that is connected to the n-doped cladding layer (14), and a reflector layer (20) that is connected to the p-doped cladding layer (18). The inventive reflector layer (20) is formed by an alloy of silver and one or several metals of the group comprising Ru, Rh, Pd, Au, Os, Ir, Pt, Cu, Ti, Ta, and Cr.
Patent
Solar cell having a three-dimensional array of photovoltaic cells enclosed within an enclosure having reflective surfaces
TL;DR: In this paper, a three-dimensional array of monolithic cells with different wavelengths of light is provided for a solar collector, and voltage converters are used to match voltages from the different types of cells to a common output voltage.
References
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Patent
Solar power system and high efficiency photovoltaic cells used therein
TL;DR: In this paper, a solar power system including a movable platform for tracking the sun, a radiation concentrator, and a plurality of photovoltaic cell modules positioned on the platform for receiving concentrated solar radiation is described.
Patent
Solar cells employing stacked opposite conductivity layers
TL;DR: In this paper, a cell for converting received light energy to electrical energy comprises, in the simplest embodiment, four layers of differing types of semiconductive material stacked so as to form three opposite conductivity junctions.
Patent
Dual electrically insulated solar cells
TL;DR: In this paper, composite solar cells of improved efficiency comprise two cells of different characteristics arranged in optical series but electrically insulated from each other, each cell is of larger crystal grain size than its substrate, which grain size is achieved by growing the cell semiconductor on a molten intermediate rheotaxy layer of a suitable semi-conductor which solidifies at a temperature below the melting temperature of the solar cell.
Patent
Solar cell device having two heterojunctions
Michael Ettenberg,Henry Kressel +1 more
TL;DR: In this article, a body of semiconductor material of a solar cell device has a surface a portion of which is exposed to incident solar radiation, and a surface opposite the incident surface.
Journal ArticleDOI
Heteroepitaxial growth of gallium phosphide on silicon
T. Katoda,M. Kishi +1 more
TL;DR: In this paper, a new method of growing gallium phosphide on a silicon substrate is presented, which includes an extra but simple process of depositing a thin phosphorus layer on the silicon substrate prior to the growth of gallium-phosphide by a halide transport method.