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Question

Is Silicon a Semiconductor?


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Solution

Explanation:

Silicon is a semiconductor material widely used in electronic components such as integrated circuits, resistors, transistors, diodes, and other components, We can say that silicon is at the heart of any electronic device, It makes up the vast majority of semiconductor chips.

  1. Manufacturers have used silicon to power electronic components for many years, the main reason is that pure silicon can withstand extreme heat and current, and the electron structure of silicon has a unique property. Around the nucleus, we will find 14 electrons, four valence electrons are present here in the outermost orbital. The crystal ends formed to have a silvery, metallic appearance.
  2. However, there will no longer be any free electrons to conduct an electric current. As a result, the silicone is now ready for use.
  3. Under certain conditions, it can conduct electricity.
  4. The doping process can change the behavior or nature of silicon, turning it into a proper conductor.
  5. A small amount of impurity is introduced into the silicon crystal during this process, As a result, the conductivity of the material increases.
  6. The n-type and p-type impurities are commonly used, In n-type doping, silicon is mixed with a small amount of phosphorus or arsenic, phosphorus and arsenic have five outer electrons, four of which are bonded to silicon electrons and a fifth free, the free electrons can cause an electric current to flow through the silicon, the electron carries a negative charge.
  7. In p-type doping, boron or gallium is used as a dopant, when impurities with only three outer electrons combine with silicon, they form "holes" in the lattice, in this case, there would be nothing for the silicon electron to bind to, During this, current can pass through these holes, This will be a positive charge.
  8. In short, n-type or p-type doping converts a silicon crystal from a good insulator to a proper conductor. As a result, silicon is classified as a “semiconductor”.

Hence, Silicon is a Semiconductor.


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