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Pictorial presentation of EG Vs
Temperature is as below :
Conduction
Band
Conduction
Band
For Silicon
Forbidden Energy Band
EG=1.21 at 0°C
Eg = 1.21
EG = 1.1
EG=1.1 at 27°C
Valance band
Valance
band
Temperature 0°C
270°C
(Room Temp.) Fig. 2: Forbidden energy band Vs Temperature in semiconductors
For Silicon EG (T) = 1.21 – 3.6 x 10-4T For Germanium EG (T) = 0.785 - 2.23 x 10-4T
Conductivity = Measure of qualified electrical conduction
o=nau Where na = charge density ; p = Mobility of charged particles.
