L13_A
Motivation and usage
Materials classified by "bandgap"
Energy bandgap of semiconductor
A photon can excite an electron: O/E conversion
The Fermi level
L13_B
Energy density
Number of carriers
Changing the Fermi level
Energy band diagrams for semiconductors
When you apply an external field
L13_C
pn-junction
L13_D
Absorption coefficients of various materials
pn photodiodes (PD)
pin PDs
Avalanche PDs
Heterojunction PDs
Photoconductive PDs
L13_E
Forward-bias the pn-junction
Reverse-bias the pn-junction
Current vs. bias voltage
