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Semiconductor - Coggle Diagram
Semiconductor
Intrinsic semiconductor
Pure semiconductor
Silicon and Germanium
Extrinsic semiconductor
P-type semiconductor
Trivalent impurity
Larger holes concentration
Junction
Reverse Biasing
Diode turns off
Photodiode
Converts light energy into electrical energy
P-type is connected to -ve and n-type to +ve terminal
Aluminium, Boron, Indium
N-type semiconductor
Pentavalent impurity
Larger electron concentration
P-N
Forward biasing
Diode turns on
P-type is connected to +ve and n-type to -ve terminal
Light emitting diode
Emits electromagnetic energy in the form of photons
Phosphorus, Arsenic, Antimony
Doped semiconductor(Addition of impurities)
Transistors
Three terminal semiconductor
Combination of p-n junctions
Emitter-base function
Collector-base function
Types of Bipolar Junction Transistors(BJTs)
n-p-n transistor
Current flows from collector to emitter
Free electrons in majority
Switching time is more
p-n-p transistor
Current flows from emitter to collector
Holes in majority
Switching time is less