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Process for making solar cells

A manufacturing method, electrode layer technology, applied in the direction of final product manufacturing, sustainable manufacturing/processing, semiconductor/solid-state device manufacturing, etc., can solve the problems of expensive manufacturing methods, slowness, and inability to use residential roofs, etc., to reduce humidity Effect

Inactive Publication Date: 2011-02-02
SOLEXANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It's slow and expensive to make
Furthermore, these CdTe solar cells are also very heavy and cannot be used in residential rooftop applications (one of the largest market segments of the solar industry)

Method used

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  • Process for making solar cells
  • Process for making solar cells
  • Process for making solar cells

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Embodiment Construction

[0015] The present invention teaches the fabrication of thin film solar cells on flexible substrates. The present invention discloses a complete device fabrication where a bare flexible substrate is supplied and a complete solar cell device is realized in a continuous process.

[0016] Reference will now be made in detail to certain specific embodiments of the invention, including the best mode contemplated by the inventors for carrying out the invention. Examples of these specific embodiments are shown in the accompanying drawings. While the invention will be described in conjunction with these specific embodiments, it will be understood that it is not intended to limit the invention to the specific embodiments described. On the contrary, it is intended to cover alternatives, modifications and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. In the following description, numerous specific details are given in ord...

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Abstract

The invention describes a process and apparatus for making a photovoltaic device in a continuous roll to roll process. The fabrication apparatus in accordance with the present invention is quite novel and non-obvious and provides capital efficiency and advantages in processing for thin film solar cells.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application 61 / 068,020, filed March 4, 2008, the contents of which are incorporated herein by reference. Background technique [0003] Rising oil prices have increased the importance of developing cost-effective renewable energy sources. Significant efforts are underway worldwide to develop cost-effective solar cells for harvesting solar energy. Currently, to make solar cells economical, conventional solar cell sources must be manufactured at a cost well below $1 / Watt. [0004] Current solar technologies can be broadly divided into crystalline silicon and thin-film technologies. About 90% of solar cells are manufactured from silicon (monocrystalline or polycrystalline). Crystalline silicon (c-Si) has been used as a light-absorbing semiconductor in most solar cells, although it is a relatively poor light absorber and requires considerable thickness (hundreds of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/00
CPCH01L31/03685C23C14/5806C23C14/0629H01L31/0296C23C14/562Y02E10/541H01L31/03687C23C14/34H01L31/0322H01L27/1423H01L31/03762H01L31/03682H01L31/028H01L21/67173H01L31/046Y02P70/50
Inventor D·雷迪C·莱德霍尔姆
Owner SOLEXANT