What is a Photovoltaic cell?
Photovoltaic cells are used to generate solar energy, Its purpose is to capture the sun’s radiation, it’s light, to convert it into electricity.
A solar cell, or photovoltaic cells, can work on its own, when needs are lower, for example, a solar calculator or a pocket inhibitor, But to meet the greatest needs they are assembled into solar panels and linked together on a sequence or branch to produce electricity
How Solar cells are made
Solar cells are made mostly of silicon extracted from pure silica rocks or sands where we melt these rocks in special furnaces to produce raw silicon with a purity exceeding 95% and then chemically treated to reach 99,9999999% so that it is used to produce high-purity silicon crystals that are used In microprocessors and microelectronics, or with relatively less purity, it is used in the manufacture of solar cells.
After the production of silicon wafers, their surfaces are chemically treated and a layer of phosphorus or boron is added to reflect the thin polarity of the silicon, thereby creating a double joint capable of separating the current mounts that are produced when exposed to sunlight. Silicon nitrate material is used to paint the surface of the cell and give it a blue color so that the reflection of the light falling on the cell will be foiled and given a greater chance to enter the cell. After that, the process of printing the silver conductor network on the front surface and the aluminum mesh on the back surface is heat-treated and thus the solar cell is ready to produce electricity.
After that, the process of printing the silver conductor network on the front surface and the aluminum network on the back surface is heat-treated and thus the solar cell is ready to produce electricity. These cells are grouped into rows in a row to increase the voltage difference or in parallel to increase the current in a process that is relatively similar to the way ordinary batteries are used. Therefore, some people like to call them solar batteries.
The cells combined together are called the solar panels and collect these panels in a similar way to get a matrix of solar panels, which we connect to the regular electricity network after we convert the direct current into alternating current using special transformers for this process.