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Photovoltaic cells with processed surfaces and related applications

A technology of photovoltaic cells and battery cells, applied in photovoltaic power generation, circuits, electrical components, etc.

Inactive Publication Date: 2013-10-02
IBC SOLAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] Although the area is 0.26685cm 2 III to V semiconductor solar cells can produce 2.6 watts of power (or about 10W / cm 2 ), and it has been estimated that such a technology could ultimately produce electricity at 8 to 10 cents / kWh, but roughly similar to the price of electricity from conventional sources, further analysis may be needed to support this estimate

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  • Photovoltaic cells with processed surfaces and related applications
  • Photovoltaic cells with processed surfaces and related applications
  • Photovoltaic cells with processed surfaces and related applications

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Embodiment Construction

[0046] The present invention is now described with reference to the drawings, wherein like reference numerals are used to refer to like elements throughout. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It may be evident, however, that the invention may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing the present invention.

[0047] In this specification, the appended claims, or the drawings, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, "X employs A or B" is intended to mean any of the stated naturally inclusive permutations, unless otherwise specified or apparent from the context. That is, if X employs A, X employs B, or X employs both A and B, then "X employs A or B" is satisfied under any o...

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Abstract

Photovoltaic cells and processes that mitigate recombination losses of photogenerated carriers are provided. To reduce recombination losses, diffuse doping layers in active photovoltaic (PV) elements are coated with patterns of dielectric material(s) that reduce contact between metal contacts and the active PV element. Various patterns can be utilized, and one or more surfaces of the PV element can be coated with one or more dielectrics. Vertical Multi-Junction photovoltaic cells can be produced with patterned PV elements, or unit cells. While patterned PV elements can increase series resistance of VMJ photovoltaic cells, and patterning one or more surfaces in the PV element can add complexity to a process utilized to produce VMJ photovoltaic cells, reduction of carrier losses at diffuse doping layers in a PV element increases efficiency of photovoltaic cells, and thus provide with PV operational advantages that outweigh increased manufacturing complexity. System to fabricate the photovoltaic cells is provided.

Description

[0001] This application is a divisional application of a patent application with the international application number PCT / US2009 / 053576 and the Chinese application number 200980139221.4 entitled "Photovoltaic cells with treated surfaces and related applications". The international filing date of the original application is 2009 August 12th. technical field [0002] This application claims benefit to U.S. Provisional Application No. 61 / 089,389, filed August 15, 2008, and entitled "SOLAR CELL WITH PATTERNED CONTACTS" , which claims priority to U.S. Patent Application No. 12 / 535,952, filed August 5, 2009, and entitled "PHOTOVOLTAIC CELL WITH PATTERNED CONTACTS"; in 2009 U.S. Patent Application No. 12 / 536,982, filed August 6, 2008, and entitled "VERTICAL MULTI JUNCTION CELL WITH TEXTURED SURFACE," which requests for August 14, 2008 Priority to U.S. Provisional Application No. 61 / 088,921, filed August 6, 2009, and titled "VERTICAL MULTIJUNCTION CELL WITH TEXTURED SURFACE" U.S. Pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0687H01L31/18
CPCH01L31/0687Y02E10/544H01L31/047Y02E60/36Y02P70/50
Inventor 伯纳德·L·塞特
Owner IBC SOLAR