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Band-pass filter of spatial silicon solar cell

A technology of band-pass filter and silicon solar cell, which is applied in instruments, circuits, photovoltaic power generation, etc., can solve problems such as high working temperature and output power discount, achieve high transmittance, reduce on-orbit working temperature, and improve on-orbit The effect of rail output power

Inactive Publication Date: 2012-08-29
SHANGHAI INST OF SPACE POWER SOURCES
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that silicon solar cells in the prior art strongly absorb infrared light, resulting in high operating temperature and greatly reduced output power, the purpose of the present invention is to provide a bandpass filter for silicon solar cells used in space

Method used

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Embodiment Construction

[0015] In order to resist the damage to the battery caused by particle radiation in the space environment and thus affect the performance of the battery, a ceria-doped radiation-resistant glass cover sheet is usually pasted on the upper surface of the battery to make a laminated battery. figure 1 It is a schematic diagram of the structure of stacked solar cells in the prior art. Such as figure 1 As shown, a layer of radiation-resistant glass cover is bonded on the upper surface of the solar cell with an adhesive.

[0016] figure 2 It is a schematic diagram of the structure of a common glass cover that is widely used in space at present, such as figure 2 As shown, a layer of MgF2 anti-reflection film is evaporated on the upper surface of the glass substrate, the main purpose is to increase the transmittance of the cover glass, so as to further improve the absorption and utilization of sunlight in the range of 400nm to 1100nm by the battery, and improve the performance of th...

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Abstract

The invention relates to a spatial power supply and discloses a band-pass filter of a spatial silicon solar cell, which comprises a layer of ceria-doped anti-radiation glass matrix; and an ultraviolet light interception filter is prepared on the upper surface of the glass matrix, and an infrared ray interception filter is prepared on the lower surface of the glass matrix. According to the band-pass filter of the spatial silicon solar cell, the problems of the prior art that an existing silicon solar cell intensely absorbs the infrared ray, so that the working temperature is high and the output power is greatly reduced are solved, and the beneficial effects of reducing the on-the-track working temperature of the silicon solar cell and improving the on-the-track output power are achieved.

Description

technical field [0001] The invention relates to a space power supply, in particular to a band-pass filter of a silicon solar cell used in space. Background technique [0002] Many spacecraft in the world use various types of silicon solar cells as the main power supply. In order to resist the damage to the battery caused by particle radiation in the space environment and thus affect the performance of the battery, the upper surface of the battery is usually pasted with ceria-doped anti-radiation solar cells. According to the glass cover sheet to make a laminated battery. [0003] In the space environment, the working state of silicon solar cells is closely related to the solar absorptivity of laminated cells. For every 0.01 increase in solar absorptivity, the operating temperature of the battery will increase by 1°C, and the output power of the battery will decrease by 0.4%. to 0.5%. At present, the cover glass widely used in space is generally evaporated a layer of MgF2 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/28B32B33/00H01L31/052
CPCY02E10/50
Inventor 雷刚陆剑峰王训春
Owner SHANGHAI INST OF SPACE POWER SOURCES
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