• Karl Joachim Ebeling


Heterojunctions are formed from two adjoining semiconductor crystals with different bandgap energies. One distinguishes junctions of the same conduction type (n-n, p-p) from junctions of different type (p-n). In the ideal case we have an abrupt junction between the materials. In practice junctions may occur within a few (2 or 3) atomic layers. With lattice mismatching (> 0.1%) of the two semiconductors defects are formed at the interface, which lead to considerable deviations from the ideal behavior of a heterojunction.


Carrier Density Space Charge Region Depletion Layer Free Charge Carrier Energy Band Diagram 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • Karl Joachim Ebeling
    • 1
  1. 1.Abteilung OptoelektronikUniversität UlmUlmGermany

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