Solar cell synergistic film

A technology of solar cells and synergistic films, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems affecting battery efficiency and life, solar cell open-circuit voltage reduction, and fill factor reduction, so as to improve short-circuit current and conversion efficiency , Improve the light utilization rate, improve the effect of photon density

Inactive Publication Date: 2009-08-19
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In order to increase the power generation of solar energy, the traditional method is to expand the area of ​​solar panels, and the price of solar panels is very expensive, which makes the cost of solar cells very high and restricts the development of the solar cell industry
In addition, the high light intensity generated by the concentrating system can also increase the short-circuit current of the solar cell and effective

Method used

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  • Solar cell synergistic film
  • Solar cell synergistic film
  • Solar cell synergistic film

Examples

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Embodiment 1

[0022] attached figure 1 It is a schematic structural view of the solar cell synergistic film of the present invention. The upper surface of the transparent film 2 has a microlens structure 1; the material of the transparent film 2 is polymethyl methacrylate (PMMA) or polycarbonate (PC). attached Figure 2-3 It is a schematic diagram of solar cell synergistic film to improve battery conversion efficiency. The microlens array 1 on the transparent film 2 has four functions: ① Concentrate parallel sunlight to the photosensitive area on the surface of the solar cell 4, which can improve the photosensitive area unit. The radiation intensity of sunlight on the area, that is, increasing the photon density on the surface of the photosensitive area, can improve the short-circuit current and photoelectric conversion efficiency of the solar cell. For the same output power, it is equivalent to reducing the area of ​​the photosensitive area and improving efficiency. It also reduces the pr...

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Abstract

The invention discloses a solar battery synergy membrane which is characterized by consisting of a transparent membrane structure, on the surface of which focus lenticule structures are distributed; the parallel sunlight can be focused on the photosensitive area of the surface of the solar battery by the array of lenticules, therefore, the photon density on the surface of the photosensitive area is increased, which is equivalent to the reduction of the area of the photosensitive area to the same output power, thus effectively improving conversion efficiency and reducing production costs; and with the flexion reflection and refraction of the array of lenticules, the light reflected by the surface of the solar battery can be reflected to the photosensitive area, thus improving the utilization rate of the light. No obvious temperature change takes place on the solar battery, and therefore the fill factors and service life of the solar battery are not reduced.

Description

technical field [0001] The invention relates to a component of a solar cell, in particular to a solar cell synergistic film, which has a structure for improving the conversion efficiency of the solar cell. Background technique [0002] Solar energy is a huge energy source that is non-polluting to the environment. The solar energy that the earth obtains every second is equivalent to the energy emitted by burning 5 million tons of high-quality coal. Using the photovoltaic effect to directly convert solar energy into electrical energy is the most promising way to utilize solar energy. Solar battery is a kind of renewable green energy, with long working life (the assembled battery can be used for more than 20 years), simple and compact structure, high specific power (ratio of power to device weight), convenient and reliable operation, no need to run and Advantages such as maintenance costs. It is of great significance to solve the current increasingly serious energy shortage a...

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Application Information

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IPC IPC(8): H01L31/0216H01L31/0232H01L31/0236H01L31/054
CPCY02E10/50
Inventor 周芳庄孝磊申溯陈林森
Owner SUZHOU UNIV
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