मराठी

With reference to Semiconductor Physics, Draw a labelled energy band diagram for a semiconductor. - Physics (Theory)

Advertisements
Advertisements

प्रश्न

With reference to Semiconductor Physics,

Draw a labelled energy band diagram for a semiconductor.

आकृती

उत्तर

Energy band diagram for a semiconductor

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2021-2022 (April) Set 1

APPEARS IN

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

Distinguish between a conductor and a semi conductor on the basis of energy band diagram


Write two characteristic features to distinguish between n-type and p-type semiconductors ?


How many 1s energy states are present in one mole of sodium vapour? Are they all filled in normal conditions? How many 3s energy states are present in one mole of sodium vapour? Are they all filled in normal conditions?


When an electron goes from the valence band to the conduction band in silicon, its energy is increased by 1.1 eV. The average energy exchanged in a thermal collision is of the order of kT which is only 0.026 eV at room temperature. How is a thermal collision able to take some to the electrons from the valence band to the conduction band?


Electric conduction in a semiconductor takes place due to


The electrical conductivity of pure germanium can be increased by
(a) increasing the temperature
(b) doping acceptor impurities
(c) doping donor impurities
(d) irradiating ultraviolet light on it.


A semiconductor is doped with a donor impurity.


Let ΔE denote the energy gap between the valence band and the conduction band. The population of conduction electrons (and of the holes) is roughly proportional to eΔE/2kT. Find the ratio of the concentration of conduction electrons in diamond to the in silicon at room temperature 300 K. ΔE for silicon is 1.1 eV and for diamond is 6.1 eV. How many conduction electrons are likely to be in one cubic metre of diamond?


What is forbidden band?


Hole are majority charge carrier in


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×