The working principle of a photovoltaic (PV) cell involves the conversion of sunlight into electricity through the photovoltaic effect. Here’s how it works: Absorption of Sunlight: When sunlight (which consists of photons) strikes the surface of the PV cell, it penetrates into the semiconductor material (usually silicon) of the cell.
The purpose of the coating is to allow the PV cell to absorb as much of the sun’s energy as possible by reducing the amount of light energy reflected away from the surface of the cell. The thickness of the PV cell compared to the surface area is greatly exaggerated for purposes of illustration.
Photovoltaic Cell Working Principle Working principle of Photovoltaic Cell is similar to that of a diode. In PV cell, when light whose energy (hv) is greater than the band gap of the semiconductor used, the light get trapped and used to produce current.
Understanding the construction and working principles of PV cells is crucial for appreciating how solar energy is harnessed to generate electricity. The photovoltaic effect, driven by the interaction of sunlight with semiconductor materials, enables the conversion of light into electrical energy.
Photovoltaic (PV) cells, commonly known as solar cells, are the building blocks of solar panels that convert sunlight directly into electricity. Understanding the construction and working principles of PV cells is essential for appreciating how solar energy systems harness renewable energy.
Apart from these methods, lithography, screen printing, and roll-to-roll methods have been used in a few applications. However, the high temperature applied to the coatings on solar cells disrupts the PV properties of the solar cells. The purpose of the application of the heat is to ensure that the coating adheres to the surface.