Charge neutrality of semiconductors
Even though we are performing doping operations to convert the intrinsic semiconductors to extrinsic semiconductors, the semiconductors will always be in a neutral state.
i.e.,
p + ND = n + NA
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Even though we are performing doping operations to convert the intrinsic semiconductors to extrinsic semiconductors, the semiconductors will always be in a neutral state.
i.e.,
p + ND = n + NA
In simple terms, “bands” refer to groups of something. So, when we talk about “Energy bands,” we’re referring to groups that consist of multiple distinct energy levels combined. There are two important energy bands that we need to consider. Those are the conduction band and the valence band.
The pure form of semiconductors is called intrinsic semiconductors. When we add some impurities into the intrinsic semiconductors, then that is known to be Extrinsic semiconductors. By doing this, we can increase the electrical conductivity of the semiconductors.
Semiconductors are a special type of material, whose electrical conductivity is lesser than the conductors but higher than the insulators. In Semiconductors, both free electrons and holes are responsible for electric current flow.
How do you represent the distance between two places? You may tell the distance in your language(e.g. twenty kilometers). This representation may seem long and difficult to understand for somebody, who doesn’t know your language. For that purpose, we need a simple yet more versatile tool to convey the information. That’s where mathematical numbers play an important role.
The amount of work done in moving a unit point charge from one point to another. It is denoted as V = W/Q. In other words, the electrical potential difference between the two points is also known to be electric voltage.
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