What is a solar panel?
Solar panels are devices that respond to light and convert light energy into electricity. There are many kinds of materials that can produce photovoltaic effect, such as: monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, indium copper selenide, etc. Their power generation principles are basically the same, and now the process of photovoltaic power generation is described by taking crystals as an example. N-type silicon can be obtained by doping P-type crystalline silicon with phosphorus to form a P-N junction.
When the light shines on the surface of the solar cell, a part of the photons is absorbed by the silicon material; the energy of the photons is transferred to the silicon atoms, causing the electrons to migrate and become free electrons to accumulate on both sides of the PN junction to form a potential difference.
When the circuit is turned on, under the action of this voltage, a current will flow through the external circuit to generate a certain output power. The essence of this process is: the process of converting photon energy into electrical energy.
A solar panel refers to a device that directly converts solar energy into electrical energy using the photovoltaic effect of semiconductor materials under lighting conditions. Generating electricity wherever there is sunlight, solar photovoltaics are suitable for everything from large power stations to small portable chargers.
However, despite the large reserves of solar energy, the share of electricity produced by humans using solar energy in the total global power consumption is still relatively small, only about 0.16%.
Therefore, actively developing cheap and efficient solar panel materials and improving the photoelectric conversion rate will help solve the international energy and environmental crisis and have great practical value and practical significance.
The main advantages of solar panels
1. Pervasive: the sun shines on the earth, there is no geographical restriction, no matter whether it is land or sea, whether it is mountains or islands, it is everywhere, and can be directly developed and used without mining and transportation;
2. Harmless: The development and use of solar energy will not pollute the environment, it is one of the clean powers, which is extremely valuable in today's increasingly serious environmental pollution;
3. Infinite: The solar radiation energy reaching the earth's surface every year is equivalent to about 130 trillion tons of coal, and its total amount is a great power that can be developed today;
4. Long-term: According to the current rate budget of nuclear energy generated by the sun, the storage of hydrogen can be maintained for tens of billions of years, and the lifespan of the earth is also about several billion years. In this sense, it can be said that the energy of the sun is used inexhaustible.
Where to buy solar power panels?
Shinefar Solar is a professional solar panel manufacturer that focuses on epc solar project. We solemnly promise to provide your products with excellent quality, reasonable prices and the highest cost performance.
Welcome to choose Shinefar Solar - a professional solar panel manufacturer that focuses on epc solar project.
For more product information about YouTube and China Solar panel supplier, you can click on the relevant link below.