CBSE Class 12-science Answered
Define semiconductors.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Semi Conductors have conductivity range of 10-6 To 104/ ohm/m and gap between the bands is small and jump of electron to conduction band increases with temperature and are called intrinsic semiconductors like silicon and germanium.
This conductivity is increased by adding impurity the conductivity is increased by extra electrons or by creating a hole .(Band Diagram can be shown with small gap between valence band & conduction band electron movement more than semiconductor less than conductor)
Answered by | 04 Jun, 2014, 03:23: PM
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