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第13講 Photodetector


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
 

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