- February 22, 2016
- LED Market
- 0 Comments
Demand for electricity is rising by every passing day in the industries and residences world over. This requires investing trillions of dollars in constructing dams, power stations and creating the required infrastructure. Though cost of generating the electricity is accelerating day by day and it is straining our already limited natural resources which has necessitated the need for alternative sources of generating electricity such as solar LED street light which can protect our environment and fulfill our needs at the same time.
Solar LED street lights contains a solar cell or solar chip which is basically a sort of photoelectric semiconductor wafer that works through solar energy. With irradiation in the chip, voltage and current gets generated which illuminates the street lights. As per the working principle- solar cells are divided in three types- single crystal silicon solar cell, polycrystalline silicon solar cell and thin film solar cells.
- Single crystal silicon solar cell
Silicon is an abundant element present on the earth and exists almost everywhere, but it is very difficult to refine the single crystal silicon. With the advancement of science, the polycrystalline silicon solar cells and amorphous silicon solar cells are produced. Additionally, except silicon, solar cells can be produced with cadmium sulfide, gallium arsenide, copper indium selenium and many other substances. It is widely used cell because it can be developed quickly and its production process is quite simplified.
2. Polycrystalline silicon solar cells
This type of cell is made to save cost and the production process is almost similar to the single crystal process. However the efficiency is about 12% lower than single crystal. In solar cell, efficiency is far more important that the cost and convenient production process.
3. Thin film solar cell
Solar Power Street Light based on thin film solar cells are best because it can be produced with the low price materials like glass, plastics, ceramics and more. More importantly, the thickness of thin film solar cell is only a few nanometers, thus it is widely used in several other products.
Thus in a nutshell, solar cells is not only our future but generations beyond!