Solar PanelSolar panel is the interconnection of numerous solar modules to obtain efficient energy. The solar panel is made up of solar cells. Previous solar cells were of low efficiency and large in size, but now very high efficiency solar cells are available. The price of solar cells is much higher, it is difficult to afford solar energy. Solar Cell: Solar cell is a photovoltaic device that converts light energy into electrical energy based on the principles of photovoltaic effect. History: The first solar cell was developed by the French scientist Antoine -Becquerel in 1839. Becquerel observed photovoltaics while experimenting with an electrolyte solution, he saw the voltage developed when light fell on the electrode. In 1941, the first silicon cell was demonstrated, but modern solar cell research began in 1954. Solar cell output: Solar cell produces 0.7 volts, the size of the solar cell does not affect the efficiency of the solar cell. It doesn't matter how big or small they are. When the surface area is large, more current will be produced, while when the surface area is small, less current will be produced. If we need more battery charging power, we need high-performance cells. Solar cells directly produce direct current. The voltage supplied by the solar cell changes with the changeFunction of cells in series and parallel:Solar cells in series:Series wiring occurs when you connect a positive terminal from one solar panel and connect it to the negative of another. This way you will get a higher voltage (the sum of the voltage of the panels) while the amplifiers will remain the same. Parallel Solar Cells: Parallel wiring occurs when you connect a positive to a positive and a negative to a negative. When you do this, the voltage stays the same, meanwhile you get higher amps. So two 12 volt/3.5 amp cells......in the center of the card......ar Cells:The types of crystal soar cells used can be classified as1. Monocrystalline silicon cell2. Polycrystalline silicon cell3. Amorphous silicon cellSingle crystalline silicon cell: the cell is produced from pure silicon crystals. Since single crystal silicon is pure and free of defects, the cell efficiency will be higher. Polycrystalline silicon cell: Liquid silicon is used as raw material, and polycrystalline silicon was obtained by sodification process. The efficiency of this type of cell is lower than that of the single crystal cell. Amorphous silicon cell: the cell was obtained by depositing silicon on a glass plate. The thickness of the layer is less than 1 µm, the thickness of a human hair for comparison is 50-100 µm. The efficiency of amorphous cells is much lower than that of the other two types of cells. This type is used for lower equipment such as watches, calculators