What is intrinsic and extrinsic semiconductor with example?
Silicon or Germanium are examples of intrinsic semiconductors. Whereas doping arsenide or phosphorus like elements in pure semiconductor forms extrinsic semiconductor like GaAs or GaP.
What are examples of intrinsic semiconductors?
Examples include silicon and germanium. A direct band gap intrinsic semiconductor is one where the maximum energy of the valence band occurs at the same as the minimum energy of the conduction band. Examples include gallium arsenide.
What are extrinsic semiconductors give examples?
Difference Between Extrinsic and Intrinsic Semiconductors
| Intrinsic Semiconductors | Extrinsic semiconductors |
|---|---|
| 5. It is not classified further. | 5. It is further classified as n-type semiconductors and p-type semiconductors. |
| 6. Examples are Silicon and Germanium. | 6. Examples are Si and Ge doped with Al, In, P, As, etc. |
Where are intrinsic semiconductors used?
Silicon and germanium are the most common examples of intrinsic semiconductors. Both these semiconductors are most frequently used in the manufacturing of transistors, diodes and other electronic components. Intrinsic semiconductor is also called as undoped semiconductor or I-type semiconductor.
What is n-type semiconductor with example?
The n-type semiconductor examples are Sb, P, Bi, and As. These materials include five electrons in their outer shell. The four electrons will make covalent bonds using the adjacent atoms and the fifth electron will be accessible like a current carrier. So that impurity atom is called a donor atom.
What is P-type semiconductor with example?
Examples. Boron doped Silicon, Aluminum doped Silicon, Boron doped Germanium etc. are the examples of p-type semiconductors.
What is meant by extrinsic semiconductor?
An extrinsic semiconductor is one that has been doped; during manufacture of the semiconductor crystal a trace element or chemical called a doping agent has been incorporated chemically into the crystal, for the purpose of giving it different electrical properties than the pure semiconductor crystal, which is called an …
What are the types of extrinsic semiconductors Explain with suitable diagram and example?
n-type v/s p-type Semiconductors
| n-type Semiconductor | p-type Semiconductor |
|---|---|
| Dopant is a pentavalent impurity. | Dopant is a trivalent impurity. |
| Dopant supplies extra free electrons. | Dopant supplies extra free holes. |
| Majority Carrier: Electrons Minority Carrier: Holes | Majority Carrier: Holes Minority Carrier: Electrons |
What are p-type and n-type semiconductors?
In a p-type semiconductor, the majority carriers are holes, and the minority carriers are electrons. In the n-type semiconductor, electrons are majority carriers, and holes are minority carriers. In an n-type semiconductor, the donor energy level is close to the conduction band and away from the valence band.