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Impurities and Excitons

  • Mildred Dresselhaus
  • Gene Dresselhaus
  • Stephen B. Cronin
  • Antonio Gomes Souza Filho
Chapter
Part of the Graduate Texts in Physics book series (GTP)

Abstract

Selected impurities are frequently introduced into semiconductors to make them n–type or p–type. The introduction of impurities into a crystal lattice not only shifts the Fermi level, but also results in a perturbation to the periodic potential, giving rise to bound impurity levels which often occur in the band gap of the semiconductor.

Supplementary material

Suggested Readings

  1. O. Gunnarsson, Alkali-doped fullerides. Narrow-band solids with unusual properties, in Alkali-doped Fullerides, vol. XVII (World Scientific, Singapore, 2004), p. 282Google Scholar
  2. Yu and Cardona, Fundamentals of Semiconductors (Springer, Berlin, 1996). Sects. 6.3 and 6.6Google Scholar
  3. Bassani and Pastori–Parravicini, Electronic States and Optical Transitions in Solids: Chaps. 6 and 7 (1975)Google Scholar

References

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Copyright information

© Springer-Verlag GmbH Germany, DE 2018

Authors and Affiliations

  • Mildred Dresselhaus
    • 1
  • Gene Dresselhaus
    • 2
  • Stephen B. Cronin
    • 3
  • Antonio Gomes Souza Filho
    • 4
  1. 1.Department of Electrical Engineering and Computer Science and Department of PhysicsMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.Francis Bitter Magnet LaboratoryMassachusetts Institute of TechnologyCambridgeUSA
  3. 3.University Park CampusUniversity of Southern CaliforniaLos AngelesUSA
  4. 4.Departamento de FísicaUniversidade Federal do CearáFortalezaBrazil

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