Q. Solar cells are usually made of:
Solution:
- A crystalline silicon solar panel, or module, is a series of interconnected silicon cells joined together to form a circuit.
- In greater numbers the amount of power produced by these interconnected cells can be increased and used as an electricity production system.
- The metal that is highly used in solar cells is silicon as it shows the properties of a semiconductor.
- Silicon is easily available. Therefore, the cost of building solar panels will be low if we use silicon.
- Silicon has a high conversion efficiency that allows more sunlight to become electricity.
- Silicon is durable, which allows solar panels to be warrantied for more than 25 years.
- Caesium metal is also used in making solar cells due to its low ionization energy and it can easily convert sunlight into electrical energy.
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