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A kind of multi-junction solar cell anti-reflection film and preparation method thereof

A technology of multi-junction solar cells and anti-reflection coatings, which is applied in the fields of circuits, photovoltaic power generation, electrical components, etc., can solve the problem that the research on wide-spectrum anti-reflection coatings of multi-junction solar cells is almost blank, and achieve the effect of meeting the needs of aerospace applications

Active Publication Date: 2018-05-29
SHANGHAI INST OF SPACE POWER SOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, domestic research on wide-spectrum anti-reflection coatings suitable for multi-junction solar cells is almost blank

Method used

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  • A kind of multi-junction solar cell anti-reflection film and preparation method thereof
  • A kind of multi-junction solar cell anti-reflection film and preparation method thereof
  • A kind of multi-junction solar cell anti-reflection film and preparation method thereof

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Embodiment Construction

[0020] The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. However, this invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0021] This embodiment specifically includes the following steps, such as figure 1 Shown:

[0022] Step 1. Select the coating material to carry out single-layer deposition respectively; obtain the relationship between the deposition incident angle and the deposition rate under the corresponding deposition conditions; the coating material can be selected from commonly used materials for solar cell reflective films, such as TiO 2、 SiO 2 、Al 2 o 3 Wait.

[0023] Step 2, measure the optical parameters of each single-layer...

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Abstract

The invention provides an anti-reflection coating for a multi-junction solar cell and a preparation method thereof. The preparation method of the anti-reflection coating for the multi-junction solar cell provided by the invention comprises the following steps: I, selecting materials to perform single-layer deposition, and acquiring relations between a deposition incidence angle and a deposition rate under corresponding deposition conditions; and II, measuring optical parameters of single-layer coatings obtained in the step I, acquiring corresponding relations among the deposition incidence angle, the deposition rate and the optical parameters under corresponding deposition conditions, designing an anti-reflection coating structure through a simulation program, and optimizing the thicknesses of the layers, so that the average reflectivity of the whole anti-reflection coating is minimum within the range of 300 to 1,700nm under a determined total thickness and deposition conditions. The reflectivity of the anti-reflection coating for the multi-junction solar cell provided by the invention is less than 0.25 percent within the range of 300 to 1,700nm.

Description

technical field [0001] The invention relates to a method in the technical field of multi-junction solar cells, in particular to a multi-layer gradient wide-spectrum anti-reflection film applicable to multi-junction solar cells and a preparation method thereof. Background technique [0002] With the development of solar cell technology, the realization of high efficiency requires the use of more junction solar cells to make more effective use of the spectrum, so the effective range of anti-reflection coatings is required to be extended to 300-1700nm to ensure effective absorption of light. The currently widely used triple-junction cells use a simple double-layer anti-reflection coating to control reflection, and the realization of wider spectrum anti-reflection must adopt a multi-layer thin film structure to form an anti-reflection coating system with a gradient change in refractive index, in order to further improve the performance at 300nm- In the range of 1700nm, the light...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/18H01L31/0216
CPCH01L31/02168H01L31/18Y02E10/50Y02P70/50
Inventor 石梦奇李欣益王训春张玮周大勇陆宏波沈静曼
Owner SHANGHAI INST OF SPACE POWER SOURCES
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