Solar Energy: In-depth review of solar cells

الملخص

The Earth receives an incredible supply of solar energy. The sun, an average star, is a fusion reactor that has been burning over 4 billion years. It provides enough energy in one minute to supply the world's energy needs for one year. In a single day, it provides more energy than our current population would consume in 27 years. In fact, "The amount of solar radiation striking the earth over three days is equivalent to the energy stored in all fossil energy sources." Solar energy is a free, inexhaustible resource, yet harnessing it is a relatively new idea. Considering that the first practical solar cells were made less than 30 years ago, we have come a long way. A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. In this article, types of solar cells will be studied and their various applications.