Impurity States and Excitons in Heterostructures

  • Fedor T. Vasko
  • Alex V. Kuznetsov
Part of the Graduate Texts in Contemporary Physics book series (GTCP)


In previous chapters we have discussed the electronic properties of ideal heterostructures within a single-particle approach. However, realistic structures have impurities and geometrical imperfections that affect electronic states. Even more importantly, the electrons interact with each other and with other elementary excitations. In this chapter we describe the formation of localized electronic states due to interaction with structure imperfection and impurities, as well as excitonic states. As in the bulk case, such localized states play an important role in the optical and transport properties of semiconductor heterostructures.


Quantum Wire Impurity State Excitonic State Bibliography Note Indirect Exciton 
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Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Fedor T. Vasko
    • 1
  • Alex V. Kuznetsov
    • 2
  1. 1.Ukrainian Academy of ScienceInstitute of SemiconductorsKievUkraine
  2. 2.CastleNet, LLCNew YorkUSA

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