Advertisements
Advertisements
Question
Two crystals C1 and C2, made of pure silicon, are doped with arsenic and aluminium respectively.
Why is doping of intrinsic semiconductors necessary?
Advertisements
Solution
Doping is necessary to increase the conductivity of semiconductors at normal temperatures.
APPEARS IN
RELATED QUESTIONS
Answer in detail.
Distinguish between intrinsic semiconductors and extrinsic semiconductors.
An intrinsic semiconductor has a resistivity of 0.50 Ω m at room temperature. Find the intrinsic carrier concentration if the mobilities of electrons and holes are 0.39 m2V-1S-1 and O.11 m2 v-1S-1 respectively:
Identify the WRONG statement from the following. In an intrinsic semiconductor ______.
What is a semiconductor?
Why does a pure semiconductor behave almost like an insulator at very low temperatures?
What first enables a valence electron to move to the conduction band?
Which charge carriers contribute to conduction in an intrinsic semiconductor?
How does the conductivity of an intrinsic semiconductor compare with that of an extrinsic semiconductor?
Which pairing correctly identifies examples of intrinsic and extrinsic semiconductors?
What do a moving student and a vacant seat represent when an electron moves into the conduction band?
