ECE 606 Lecture 8: Density of States

By Muhammad A. Alam

Purdue University

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Abstract

Outline:
  • Calculation of density of states
  • Density of states for specific materials
  • Characterization of Effective Mass
  • Conclusions

References

R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on Solid State Devices, Volume VI, Addison-Wesley, 1987, Chapter 3 (pages 88-96)

Cite this work

Researchers should cite this work as follows:

  • Muhammad A. Alam (2009), "ECE 606 Lecture 8: Density of States," https://nanohub.org/resources/5784.

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Time

Location

EE 115, Purdue University, West Lafayette, IN

Tags

  1. course lecture
  2. density of states
  3. device physics
  4. devices
  5. iTunes U
  6. transistors
ECE 606 Lecture 8: Density of States
  • EE-606: Solid State Devices Lecture 8: Density of States 1. EE-606: Solid State Devices Le… 0
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  • Outline 2. Outline 57.93333333333333
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  • Density of States 3. Density of States 81.63333333333334
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  • Density of States in 1-D Semiconductors 4. Density of States in 1-D Semic… 234.5
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  • 1D-DOS 5. 1D-DOS 429.4
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  • 1D-DOS 6. 1D-DOS 597.6
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  • Density of States in 2D Semiconductors 7. Density of States in 2D Semico… 746.4666666666667
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  • Density of States in 3D Semiconductors 8. Density of States in 3D Semico… 811.0333333333333
    00:00/00:00
  • 3D-DOS 9. 3D-DOS 1077.2
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  • Outline 10. Outline 1193.7
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  • Density of States of GaAs: Conduction/Valence Bands 11. Density of States of GaAs: Con… 1213.7333333333334
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  • Four valleys inside BZ for Germanium 12. Four valleys inside BZ for Ger… 1486.8666666666666
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  • Ellipsoidal Bands and DOS Effective Mass 13. Ellipsoidal Bands and DOS Effe… 1573.3666666666666
    00:00/00:00
  • DOS Effective Mass for Conduction Band 14. DOS Effective Mass for Conduct… 1838.4333333333334
    00:00/00:00
  • Outline 15. Outline 1968.8666666666666
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  • Measurement of Effective Mass 16. Measurement of Effective Mass 1994.8
    00:00/00:00
  • Motion in Real Space and Phase Space 17. Motion in Real Space and Phase… 2065.7333333333331
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  • Derive the Cyclotron Formula 18. Derive the Cyclotron Formula 2215.1
    00:00/00:00
  • Effective mass in Ge 19. Effective mass in Ge 2234.1333333333332
    00:00/00:00
  • Derivation for the Cyclotron Formula 20. Derivation for the Cyclotron F… 2341.5
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  • Continued … 21. Continued … 2467.4333333333334
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  • Measurement of Effective Mass 22. Measurement of Effective Mass 2575.4333333333334
    00:00/00:00
  • Valence Band Effective Mass 23. Valence Band Effective Mass 2686.3
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  • Conclusions 24. Conclusions 2757
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