Is the conversion of solar energy into electricity a chemical reaction?

The Odeyo solar power plant in France is the first solar power plant in the world to achieve solar power generation. Although the power generated at that time was only 64 kilowatts, it laid the foundation for the research and design of later solar power plants. In 1982, the United States built a 10 million kilowatt tower solar thermal intermediate test station.

The United States plans to have a capacity of 40 million kilowatts of solar power plants by 2000. In 2000 and 2020, the percentage of electricity produced as a percentage of total energy will be 7% and 25% respectively. Because the CSP (concentrator) needs to occupy a large space for daylighting and heating, the equipment is large, taking the United States in California to build a 10,000 kilowatt power generation equipment as an example, the light collection device reaches 400,000 square meters, and 2 million kilowatts need to cover an area of 50 square kilometers.

It is estimated that the efficiency of large-scale solar power plants is only about 30%. ...

The first thing you need to know is that solar energy generates electricity by forming a directional current in semiconductors (the material of solar panels), which is the so-called photovoltaic effect, which is the basic principle of semiconductor conductivity and the principle of temperature resistance.

I just wrote a piece about the principle of thermal semiconductors, and I used it here, and I really wrote it.

A single pure aggregate of non-metallic elements and an aggregate of impurities. The former's pure semiconductors that are not doped and have no lattice defects are called intrinsic semiconductors. In the process of forming a covalent bond in the atom, a positively charged vacancy is formed after the lack of an electron, called a hole, the inside of the atom in order to fill the vacancy left by the hole must move nearby electrons to supplement the hole, and the electrons at the charge balance are combined by the hole, it will leave a hole again, if this irregular hole-electron effect is controlled by the law, then a macroscopic current, holes and free electrons will be formed to synthesize free carriers.

You can understand it as the basic unit of conduction. Heating or illumination will cause thermal excitation or photoexcitation of semiconductors, resulting in more electron-hole pairs, at which time the carrier concentration increases, the conductivity increases, that is, the resistance decreases, which is also the basic principle of semiconductor thermistors and photoresistors.

After irradiation to produce an electric current in this process, there is obviously no generation of new matter, so it does not count.

But note that this question asks about the energy conversion process, and the answer is: this is a physical process, but if you ask about the working principle of solar cells, the answer is: yes, because the battery work includes the generation of electrical energy and the storage of electrical energy, you know, the storage of electrical energy is the electrolytic cell process.

This is not a chemical reaction, this is mostly physical.

Chemical energyExamples of conversion to electrical energy:

1. When the electric vehicle is driving, it converts chemical energy into electrical energy;

2. The battery in the galvanic flashlight converts chemical energy into electrical energy;

3. Thermal power generation converts chemical energy into electrical energy;

4. The battery converts chemical energy into electrical energy;

5. Electrolytic cell.

Galvanic cells convert chemical energy into electrical energy.

Chemical energy plays a major role.

Various substances have chemical energy stored. Different substances not only have different compositions and structures, but also contain different chemical energies. in chemical reactions.

, chemical bonds in existing chemicals.

, and the formation of chemical bonds in the product.

Then, whether the result of a given chemical reaction after completion is to absorb or release energy depends on the relative magnitude of the total energy of the reactants to the total energy of the product.

Summary. 1. It is a chemical effect.

2. The chemical effect of electricity is mainly due to the participation of charged particles (electrons or ions) in the electric current, which causes chemical changes in the substance.

The conversion of electrical energy into chemical energy is not a chemical effect.

1. It is a chemical effect 2. The chemical effect of electricity is mainly the participation of charged particles (electrons or ions) in the electric current that causes chemical changes in the substance.

1. It is a chemical effect 2. The chemical effect of electricity is mainly the participation of charged particles (electrons or ions) in the electric current that causes chemical changes in the substance.

1. Solar energy is the energy produced by the continuous process of nuclear fusion reactions inside the sun.

2. Solar energy is a kind of renewable energy. It refers to the thermal radiation energy of the sun (see the three ways of heat energy propagation: radiation), and the main manifestation is often called the sun's rays.

In modern times, it is generally used as an electric power or to provide energy for water heaters.

Solar energy converts light energy into electricity.

Solar energy refers to the collection of sunlight and its conversion into other forms of energy. One of the most common ways is to convert solar energy into electricity. When photons pass through solar panels, they produce electrons and convert their energy into electricity.

This is known as the photovoltaic effect. Solar panels are typically composed of multiple layers of silicon or other semiconductor materials that are able to capture the sun's energy and produce electrons. The electrons then produce electricity through the movement of electrical conductors in the solar panels.

The range of applications for solar energy is very wide. In addition to generating electricity, it can also be used to heat water and air. Solar water heaters convert the heat captured by the solar collector into thermal energy capable of heating the water.

Solar air heaters use solar collectors to heat the air to provide warm air**. Solar energy can also be used to generate electricity in power plants. These Tongsui power plants are typically located in sunny areas, such as the outback of Saudi Arabia and Australia.

With the continuous development of solar energy technology, its application has become more and more extensive. In the future, as technology advances, solar energy will be able to capture the sun's energy more efficiently and solar panels will be produced more cheaply. Doing so will make solar energy an even more important form of energy in the future.

In addition, the application of solar energy will further increase, such as smart homes, electric vehicles, and many more. Therefore, we can foresee that the application of solar energy is very promising, and it will become more and more popular in the future. <>

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Solar cells convert light energy into electrical energy.

Solar cell power generation is made based on the photoelectric properties of a particular material. A black body (such as the sun) emits electromagnetic waves of the same wavelength (corresponding to different frequencies), such as infrared, ultraviolet, visible, etc. When these rays are irradiated on different conductors or semiconductors, the photons interact with the free electrons in the conductor or semiconductor to produce an electric current.

Crystalline silicon solar cells working with photovoltaic effects are the mainstream, while thin-film cells working with photochemical effects are still in their infancy.

Solar cell power generation is made based on the photoelectric properties of a particular material. Blackbodies (such as the sun) emit electromagnetic waves of different wavelengths (corresponding to different frequencies), such as infrared, ultraviolet, visible light, and so on. When these rays are irradiated on different conductors or semiconductors, photons react with free electrons in the conductors or semiconductors to produce an electric current.