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Solar cells for stratospheric and outer space use

A solar cell, technology from outer space, applied in the field of solar cells

Inactive Publication Date: 2010-03-24
UNITED SOLAR OVONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the harsh and destructive environment in which these solar cells will be used has not been seriously considered
In short, little attention has been paid to protecting solar cells from the harmful effects of the stratospheric and outer space environments

Method used

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  • Solar cells for stratospheric and outer space use
  • Solar cells for stratospheric and outer space use
  • Solar cells for stratospheric and outer space use

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Embodiment Construction

[0020] The present invention comprises encapsulated thin film amorphous silicon alloy solar cells on stainless steel or polymer substrates for satellite and spacecraft applications. The encapsulant layer provides a protective coating on the photovoltaic device. The encapsulant layer is transparent, flexible, sterically compatible and mechanically rigid. Furthermore, the coating adheres well to the construction materials of the photovoltaic cell and blocks atmospheric pollutants. Due to the different environments in the stratosphere and space, encapsulant materials must meet many stringent requirements.

[0021] This encapsulant coating must fulfill two purposes: 1) protect the photovoltaic device; and 2) control the absorptivity and emissivity of the cell. With respect to the first purpose, the encapsulant coating resists: a) terrestrial environmental factors such as humidity and atmospheric pollutants; b) mechanical manipulation during module / array fabrication and stowage; ...

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Abstract

A light weight photovoltaic device for use in stratospheric and outer space applications. The device includes a protective surface coating on the light incident side thereof. The protective coating does not deleteriously affect the photovoltaic properties of the solar cell, is formed of a material which protects said solar cell from the harsh conditions in the stratospheric or outer space environment in which the photovoltaic device is adapted to be used; and remains substantially unchanged when exposed to the harsh conditions in the stratosphere or outer space. The protective coating is preferably made of a spray coated silicone based material and is between 0.01 and 2 mil thick.

Description

[0001] Government License Rights [0002] This invention was made with government support under U.S. Air Force Contract No. F29601-03-C-0122. The Government has certain rights in this invention. field of invention [0003] The present invention relates to solar cells for use on spacecraft in the stratosphere and on spacecraft in outer space. More specifically, the present invention relates to lightweight solar cells (specific power: >500W / kg) and ultralight solar cells (specific power: >1000W / kg), which are deposited on polymer or thin metal films and include those deposited on The top is a spray-on silicone encapsulant for protection against atmospheric, stratospheric and outer space environments. Background of the invention [0004] It has become abundantly clear that lightweight, flexible solar cells have great potential for stratospheric and outer space applications. An example of a stratospheric use is powering high-altitude platforms. In this regard, the req...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/00
CPCY02E10/52H01L31/078H01L31/048H01L31/041Y02E10/50H01L31/047
Inventor S·刘K·比尔宁克A·班纳吉C·-C·杨S·古哈
Owner UNITED SOLAR OVONIC
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