Difference Between Intrinsic and Extrinsic Semiconductors
|
Intrinsic Semiconductor |
Extrinsic Semiconductor |
|---|---|
|
Low impurity content |
Higher impurity content |
|
No intentional impurities |
Donor and acceptor impurities. |
|
Few available charge carriers |
Abundant charge carriers |
|
Poor conductivity |
Enhanced conductivity |
|
Single type (pure) |
N-type and P-type (doped) |
|
Electrons and holes |
Electrons (N-type) and holes (P-type) |
|
Low carrier density |
High carrier density |
|
High-temperature sensitivity |
Moderate to low temperature sensitivity |
|
Relies on light for carrier generation |
Enhanced carrier generation |
|
Limited role in complex circuits |
Essential for active electronic devices |
|
Better thermal stability |
Varied thermal stability |
|
Less efficient energy consumption |
More efficient energy consumption |
|
Examples: Solar panels, photodetectors, sensors, thermoelectric generators |
Examples: Transistors, diodes, amplifiers, light emitting diodes |
Difference Between Intrinsic Semiconductor and Extrinsic Semiconductor
Semiconductors are unique materials that possess moderate conductivity, falling between conductors and insulators. The conductivity of semiconductors proves incredibly advantageous for various applications. When we add energy to semiconductors, like heat or light, it makes some particles move around. This creates empty spots that act like positive charges known as holes. This lets electrons move and electricity flow. Transistors, integrated circuits, and diodes are made from semiconductors, which are useful. They can also be switches, amplifiers, and memory cells. They’re like the important parts that make computers, phones, and many other cool things that have changed our world.
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