ECE 606 Lecture 7: Energy Bands in Real Crystals

Published on

Abstract

Outline:
  • E-k diagram/constant energy surfaces in 3D solids
  • Characterization of E-k diagram: Bandgap
  • Characterization of E-k diagram: Effective Mass
  • Conclusions

References

R. F. Pierret, "Advanced Semiconductor Fundamentals", Modular Series on Solid State Devices, Volume VI, Addison-Wesley, 1987, Chapter 3 (pages 71-77)

Cite this work

Researchers should cite this work as follows:

  • Muhammad A. Alam (2009), "ECE 606 Lecture 7: Energy Bands in Real Crystals," https://nanohub.org/resources/5782.

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Time

Location

EE 115, Purdue University, West Lafayette, IN

Tags

ECE 606 Lecture 7: Energy Bands in Real Crystals
  • EE-606: Solid State Devices Lecture 7: Energy Bands in Real Crystals 1. EE-606: Solid State Devices Le… 0
    00:00/00:00
  • Outline 2. Outline 35.233333333333334
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  • Electronic States 3. Electronic States 90.86666666666666
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  • Brillouin Zone in Cubic Lattice … 4. Brillouin Zone in Cubic Lattic… 161.3
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  • Brillouin Zone in Real FCC Lattices … 5. Brillouin Zone in Real FCC Lat… 385.53333333333336
    00:00/00:00
  • Analogy for E-k Diagram: 4D info thiough 2D Plots 6. Analogy for E-k Diagram: 4D in… 676.5
    00:00/00:00
  • E-k along G-X Direction 7. E-k along G-X Direction 847.36666666666667
    00:00/00:00
  • E-k along G-L direction 8. E-k along G-L direction 1041.0666666666666
    00:00/00:00
  • E-k Diagram 9. E-k Diagram 1109.3
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  • E-k diagram for GaAs 10. E-k diagram for GaAs 1360.7666666666667
    00:00/00:00
  • Analogy for E-k Diagram 11. Analogy for E-k Diagram 1473.4
    00:00/00:00
  • Constant-E surface for Conduction Band 12. Constant-E surface for Conduct… 1521.6666666666667
    00:00/00:00
  • Constant E-surface … 13. Constant E-surface … 1600.4666666666667
    00:00/00:00
  • Four valleys inside BZ for Germanium 14. Four valleys inside BZ for Ger… 1743.1
    00:00/00:00
  • Constant E-surface for Valence Band 15. Constant E-surface for Valence… 1826.9
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  • Outline 16. Outline 1916.2333333333334
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  • Measurement of Band Gap 17. Measurement of Band Gap 1956.4666666666667
    00:00/00:00
  • Measurement of Energy Gap 18. Measurement of Energy Gap 2080.8
    00:00/00:00
  • Temperature-dependent Band Gap 19. Temperature-dependent Band Gap 2174.5
    00:00/00:00
  • Outline 20. Outline 2240.1333333333332
    00:00/00:00
  • Measurement of Effective Mass 21. Measurement of Effective Mass 2249.6
    00:00/00:00
  • Measurement of Effective Mass 22. Measurement of Effective Mass 2290.1666666666665
    00:00/00:00
  • Derive the Cyclotron Formula 23. Derive the Cyclotron Formula 2471.0333333333333
    00:00/00:00
  • Conclusions 24. Conclusions 2621.0666666666666
    00:00/00:00