Introduction to P-N diode National Taiwan University Introduction to P-N diode Outline Semiconductor intrinsic p-type, n-type (extrinsic) P-N diode depletion region I-V characteristic of diode

Energy band structure of different matters National Taiwan University semiconductor Energy band structure of different matters energy band structure : metal, semiconductor, insulation An intrinsic semiconductor, also called an undoped semiconductor, is a pure semiconductor without any significant dopant species present. doping (extrinsic semiconductor ) : p-type, n-type Eg conductive band valence band energy gap metal Semiconductor Eg ~ 1~3 eV insulation doping P-type (IIIA) (acceptor) N-type (VA) (donor)

P-N diode depletion region is due to P-N junction National Taiwan University P-N diode depletion region is due to P-N junction forward bias : smaller depletion region reverse bias : larger depletion region use the reverse voltage 500V for ES

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P-N diode

National Taiwan University semiconductor An intrinsic semiconductor, also called an undoped semiconductor or i-type semiconductor, is a pure semiconductor without any significant dopant species present. An extrinsic semiconductor is a semiconductor that has been doped.