1, which can be used for health preservation.

Sunbathing refers to the method of using the sun to irradiate the human body to treat diseases and promote physical and mental rehabilitation, also known as "sunbathing". By sunbathing, the human body is not only affected by infrared rays, visible rays and ultraviolet rays contained in sunlight, but also by meteorological factors such as temperature and humidity in the air.

Therefore, sunbathing has many effects on health. Studies have shown that moderate sunlight can dilate skin blood vessels, promote metabolism, improve skin function and make skin healthy.

2, can be used to generate electricity

Solar energy is inexhaustible, which can be described as one of the most abundant energy sources in nature. Realizing the efficient use of solar energy is also the key to solve the energy problem. At present, there are still many defects in the development and utilization of solar energy, such as low efficiency, scattered radiation and unstable energy storage.

The ideal solar photothermal fuel will realize reversible energy conversion and storage in a single material system, which has the advantages of zero emission, easy transportation, recyclability, regeneration and release on demand in the form of heat. Solar photothermal fuel has therefore become an important goal for global scientists to "hunt".

3. Solar variable fuel

The reason why green leaves can carry out photosynthesis and turn carbon dioxide in the air into oxygen depends on two points. One is that two molecules in the leaves absorb sunlight, and the other is that two catalysts convert sunlight. The equipment they developed is to simulate green leaves, absorb solar energy by silicon, and then convert solar energy by two synthetic catalysts.

Extended data

Disadvantages of solar energy industry

The low international energy prices have a serious impact on new energy industries such as solar energy. The higher the price of traditional energy, the greater the development space of new energy. At present, due to the continued weak global demand for crude oil, shale revolution and many other negative factors, the days of new energy industries such as solar energy are very sad.

Secondly, the previous development model of solar energy industry is unsustainable. Influenced by the high prices of traditional energy sources such as oil, natural gas and coal, the new energy industry has become more and more popular in the world in recent years, in which the solar energy industry has not only developed rapidly, but also reached an overheated level. After more than 20 years of development, the solar energy industry has entered the reshuffle period, and the pace of survival of the fittest is accelerating.

Facing the fierce competition of solar photovoltaic products, polysilicon production is located in the upstream of solar energy industry, while facing the cold winter of solar energy industry, the demand for polysilicon by global photovoltaic manufacturers is relatively weak.

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